Home / 721,822,817.60-996,089,715.12-408,550,305.52

Finding the Fourth Proportional to 721,822,817.60, 996,089,715.12 and 408,550,305.52

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Solution

The fourth proportional to 721,822,817.60, 996,089,715.12 and 408,550,305.52 is: 563,784,834.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,822,817.60 : 996,089,715.12 = 408,550,305.52 : x
  2. Step 2: Convert to fraction form
    721,822,817.60/996,089,715.12 = 408,550,305.52/x
  3. Step 3: Cross multiply
    721,822,817.60x = 996,089,715.12 × 408,550,305.52
  4. Step 4: Simplify right side
    721,822,817.60x = 406,952,757,437,605,760
  5. Step 5: Solve for x
    x = 406,952,757,437,605,760/721,822,817.60
  6. Step 6: Final answer
    x = 563,784,834.05

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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.