Home / 21,291,023.68-29,381,583.81-12,123,666.43

Finding the Fourth Proportional to 21,291,023.68, 29,381,583.81 and 12,123,666.43

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Solution

The fourth proportional to 21,291,023.68, 29,381,583.81 and 12,123,666.43 is: 16,730,643.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,291,023.68 : 29,381,583.81 = 12,123,666.43 : x
  2. Step 2: Convert to fraction form
    21,291,023.68/29,381,583.81 = 12,123,666.43/x
  3. Step 3: Cross multiply
    21,291,023.68x = 29,381,583.81 × 12,123,666.43
  4. Step 4: Simplify right side
    21,291,023.68x = 356,212,521,297,528.50
  5. Step 5: Solve for x
    x = 356,212,521,297,528.50/21,291,023.68
  6. Step 6: Final answer
    x = 16,730,643.23

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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.