Home / 971,072,168.61-1,340,202,327.75-636,825,894.60

Finding the Fourth Proportional to 971,072,168.61, 1,340,202,327.75 and 636,825,894.60

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Solution

The fourth proportional to 971,072,168.61, 1,340,202,327.75 and 636,825,894.60 is: 878,900,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,072,168.61 : 1,340,202,327.75 = 636,825,894.60 : x
  2. Step 2: Convert to fraction form
    971,072,168.61/1,340,202,327.75 = 636,825,894.60/x
  3. Step 3: Cross multiply
    971,072,168.61x = 1,340,202,327.75 × 636,825,894.60
  4. Step 4: Simplify right side
    971,072,168.61x = 853,475,546,314,396,160
  5. Step 5: Solve for x
    x = 853,475,546,314,396,160/971,072,168.61
  6. Step 6: Final answer
    x = 878,900,223.80

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1.5x scale

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.