Home / 721,861,403.60-1,082,792,105.40-176,602,937.60

Finding the Fourth Proportional to 721,861,403.60, 1,082,792,105.40 and 176,602,937.60

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Solution

The fourth proportional to 721,861,403.60, 1,082,792,105.40 and 176,602,937.60 is: 264,904,406.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,861,403.60 : 1,082,792,105.40 = 176,602,937.60 : x
  2. Step 2: Convert to fraction form
    721,861,403.60/1,082,792,105.40 = 176,602,937.60/x
  3. Step 3: Cross multiply
    721,861,403.60x = 1,082,792,105.40 × 176,602,937.60
  4. Step 4: Simplify right side
    721,861,403.60x = 191,224,266,623,728,832
  5. Step 5: Solve for x
    x = 191,224,266,623,728,832/721,861,403.60
  6. Step 6: Final answer
    x = 264,904,406.40

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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.