Home / 81,484,658,581.12-122,226,959,103.59-21,791,769,414.52

Finding the Fourth Proportional to 81,484,658,581.12, 122,226,959,103.59 and 21,791,769,414.52

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Solution

The fourth proportional to 81,484,658,581.12, 122,226,959,103.59 and 21,791,769,414.52 is: 32,687,646,428.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,484,658,581.12 : 122,226,959,103.59 = 21,791,769,414.52 : x
  2. Step 2: Convert to fraction form
    81,484,658,581.12/122,226,959,103.59 = 21,791,769,414.52/x
  3. Step 3: Cross multiply
    81,484,658,581.12x = 122,226,959,103.59 × 21,791,769,414.52
  4. Step 4: Simplify right side
    81,484,658,581.12x = 2,663,541,709,023,399,641,088
  5. Step 5: Solve for x
    x = 2,663,541,709,023,399,641,088/81,484,658,581.12
  6. Step 6: Final answer
    x = 32,687,646,428.22

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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.