Home / 21,860,145.28-30,175,507.68-19,564,318.72

Finding the Fourth Proportional to 21,860,145.28, 30,175,507.68 and 19,564,318.72

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Solution

The fourth proportional to 21,860,145.28, 30,175,507.68 and 19,564,318.72 is: 27,006,373.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860,145.28 : 30,175,507.68 = 19,564,318.72 : x
  2. Step 2: Convert to fraction form
    21,860,145.28/30,175,507.68 = 19,564,318.72/x
  3. Step 3: Cross multiply
    21,860,145.28x = 30,175,507.68 × 19,564,318.72
  4. Step 4: Simplify right side
    21,860,145.28x = 590,363,249,789,327.75
  5. Step 5: Solve for x
    x = 590,363,249,789,327.75/21,860,145.28
  6. Step 6: Final answer
    x = 27,006,373.57

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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.