Home / 696,805,129,585.40-961,463,428,231.73-388,148,807,461.92

Finding the Fourth Proportional to 696,805,129,585.40, 961,463,428,231.73 and 388,148,807,461.92

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Solution

The fourth proportional to 696,805,129,585.40, 961,463,428,231.73 and 388,148,807,461.92 is: 535,574,247,721.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,805,129,585.40 : 961,463,428,231.73 = 388,148,807,461.92 : x
  2. Step 2: Convert to fraction form
    696,805,129,585.40/961,463,428,231.73 = 388,148,807,461.92/x
  3. Step 3: Cross multiply
    696,805,129,585.40x = 961,463,428,231.73 × 388,148,807,461.92
  4. Step 4: Simplify right side
    696,805,129,585.40x = 373,190,883,086,395,280,195,584
  5. Step 5: Solve for x
    x = 373,190,883,086,395,280,195,584/696,805,129,585.40
  6. Step 6: Final answer
    x = 535,574,247,721.81

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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.