Home / 20,711,971-31,068,398.76-5,359,590.64

Finding the Fourth Proportional to 20,711,971, 31,068,398.76 and 5,359,590.64

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Solution

The fourth proportional to 20,711,971, 31,068,398.76 and 5,359,590.64 is: 8,039,500.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711,971 : 31,068,398.76 = 5,359,590.64 : x
  2. Step 2: Convert to fraction form
    20,711,971/31,068,398.76 = 5,359,590.64/x
  3. Step 3: Cross multiply
    20,711,971x = 31,068,398.76 × 5,359,590.64
  4. Step 4: Simplify right side
    20,711,971x = 166,513,899,193,883.59
  5. Step 5: Solve for x
    x = 166,513,899,193,883.59/20,711,971
  6. Step 6: Final answer
    x = 8,039,500.40

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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.