Home / 872,109,363.60-1,308,164,045.40-678,617,600.40

Finding the Fourth Proportional to 872,109,363.60, 1,308,164,045.40 and 678,617,600.40

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Solution

The fourth proportional to 872,109,363.60, 1,308,164,045.40 and 678,617,600.40 is: 1,017,926,400.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,109,363.60 : 1,308,164,045.40 = 678,617,600.40 : x
  2. Step 2: Convert to fraction form
    872,109,363.60/1,308,164,045.40 = 678,617,600.40/x
  3. Step 3: Cross multiply
    872,109,363.60x = 1,308,164,045.40 × 678,617,600.40
  4. Step 4: Simplify right side
    872,109,363.60x = 887,743,145,418,904,704
  5. Step 5: Solve for x
    x = 887,743,145,418,904,704/872,109,363.60
  6. Step 6: Final answer
    x = 1,017,926,400.60

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1.5x scale

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.