Home / 21,381,468.35-29,510,712.92-12,684,468.35

Finding the Fourth Proportional to 21,381,468.35, 29,510,712.92 and 12,684,468.35

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Solution

The fourth proportional to 21,381,468.35, 29,510,712.92 and 12,684,468.35 is: 17,507,109.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,381,468.35 : 29,510,712.92 = 12,684,468.35 : x
  2. Step 2: Convert to fraction form
    21,381,468.35/29,510,712.92 = 12,684,468.35/x
  3. Step 3: Cross multiply
    21,381,468.35x = 29,510,712.92 × 12,684,468.35
  4. Step 4: Simplify right side
    21,381,468.35x = 374,327,703,956,253.69
  5. Step 5: Solve for x
    x = 374,327,703,956,253.69/21,381,468.35
  6. Step 6: Final answer
    x = 17,507,109.33

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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.