Home / 696,805,129,595.06-961,463,428,245.22-388,148,807,471.70

Finding the Fourth Proportional to 696,805,129,595.06, 961,463,428,245.22 and 388,148,807,471.70

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Solution

The fourth proportional to 696,805,129,595.06, 961,463,428,245.22 and 388,148,807,471.70 is: 535,574,247,735.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,805,129,595.06 : 961,463,428,245.22 = 388,148,807,471.70 : x
  2. Step 2: Convert to fraction form
    696,805,129,595.06/961,463,428,245.22 = 388,148,807,471.70/x
  3. Step 3: Cross multiply
    696,805,129,595.06x = 961,463,428,245.22 × 388,148,807,471.70
  4. Step 4: Simplify right side
    696,805,129,595.06x = 373,190,883,101,034,542,006,272
  5. Step 5: Solve for x
    x = 373,190,883,101,034,542,006,272/696,805,129,595.06
  6. Step 6: Final answer
    x = 535,574,247,735.39

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Double scale
Find fourth proportional to 696,805,129,596.06, 961,463,428,246.60 and 388,148,807,472.70
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.