Home / 708,637,203.20-1,062,955,804.80-640,612,755.20

Finding the Fourth Proportional to 708,637,203.20, 1,062,955,804.80 and 640,612,755.20

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Solution

The fourth proportional to 708,637,203.20, 1,062,955,804.80 and 640,612,755.20 is: 960,919,132.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,637,203.20 : 1,062,955,804.80 = 640,612,755.20 : x
  2. Step 2: Convert to fraction form
    708,637,203.20/1,062,955,804.80 = 640,612,755.20/x
  3. Step 3: Cross multiply
    708,637,203.20x = 1,062,955,804.80 × 640,612,755.20
  4. Step 4: Simplify right side
    708,637,203.20x = 680,943,046,768,761,344
  5. Step 5: Solve for x
    x = 680,943,046,768,761,344/708,637,203.20
  6. Step 6: Final answer
    x = 960,919,132.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.