Home / 708,584,028.80-1,062,876,043.20-636,920,412.80

Finding the Fourth Proportional to 708,584,028.80, 1,062,876,043.20 and 636,920,412.80

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Solution

The fourth proportional to 708,584,028.80, 1,062,876,043.20 and 636,920,412.80 is: 955,380,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,584,028.80 : 1,062,876,043.20 = 636,920,412.80 : x
  2. Step 2: Convert to fraction form
    708,584,028.80/1,062,876,043.20 = 636,920,412.80/x
  3. Step 3: Cross multiply
    708,584,028.80x = 1,062,876,043.20 × 636,920,412.80
  4. Step 4: Simplify right side
    708,584,028.80x = 676,967,448,190,174,592
  5. Step 5: Solve for x
    x = 676,967,448,190,174,592/708,584,028.80
  6. Step 6: Final answer
    x = 955,380,619.20

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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.