Home / 696,805,129,584.90-961,463,428,231.05-388,148,807,461.42

Finding the Fourth Proportional to 696,805,129,584.90, 961,463,428,231.05 and 388,148,807,461.42

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Solution

The fourth proportional to 696,805,129,584.90, 961,463,428,231.05 and 388,148,807,461.42 is: 535,574,247,721.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,805,129,584.90 : 961,463,428,231.05 = 388,148,807,461.42 : x
  2. Step 2: Convert to fraction form
    696,805,129,584.90/961,463,428,231.05 = 388,148,807,461.42/x
  3. Step 3: Cross multiply
    696,805,129,584.90x = 961,463,428,231.05 × 388,148,807,461.42
  4. Step 4: Simplify right side
    696,805,129,584.90x = 373,190,883,085,650,640,240,640
  5. Step 5: Solve for x
    x = 373,190,883,085,650,640,240,640/696,805,129,584.90
  6. Step 6: Final answer
    x = 535,574,247,721.12

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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.