Home / 40,011,135.29-55,215,422.73-21,676,420.79

Finding the Fourth Proportional to 40,011,135.29, 55,215,422.73 and 21,676,420.79

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Solution

The fourth proportional to 40,011,135.29, 55,215,422.73 and 21,676,420.79 is: 29,913,491.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,011,135.29 : 55,215,422.73 = 21,676,420.79 : x
  2. Step 2: Convert to fraction form
    40,011,135.29/55,215,422.73 = 21,676,420.79/x
  3. Step 3: Cross multiply
    40,011,135.29x = 55,215,422.73 × 21,676,420.79
  4. Step 4: Simplify right side
    40,011,135.29x = 1,196,872,737,193,210.50
  5. Step 5: Solve for x
    x = 1,196,872,737,193,210.50/40,011,135.29
  6. Step 6: Final answer
    x = 29,913,491.04

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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.