Home / 319,840,445.13-479,789,946.15-89,807,979.75

Finding the Fourth Proportional to 319,840,445.13, 479,789,946.15 and 89,807,979.75

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Solution

The fourth proportional to 319,840,445.13, 479,789,946.15 and 89,807,979.75 is: 134,720,190.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,840,445.13 : 479,789,946.15 = 89,807,979.75 : x
  2. Step 2: Convert to fraction form
    319,840,445.13/479,789,946.15 = 89,807,979.75/x
  3. Step 3: Cross multiply
    319,840,445.13x = 479,789,946.15 × 89,807,979.75
  4. Step 4: Simplify right side
    319,840,445.13x = 43,088,965,768,092,792
  5. Step 5: Solve for x
    x = 43,088,965,768,092,792/319,840,445.13
  6. Step 6: Final answer
    x = 134,720,190.72

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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.