Home / 145,006,814.20-217,510,221.30-87,675,921.40

Finding the Fourth Proportional to 145,006,814.20, 217,510,221.30 and 87,675,921.40

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Solution

The fourth proportional to 145,006,814.20, 217,510,221.30 and 87,675,921.40 is: 131,513,882.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,006,814.20 : 217,510,221.30 = 87,675,921.40 : x
  2. Step 2: Convert to fraction form
    145,006,814.20/217,510,221.30 = 87,675,921.40/x
  3. Step 3: Cross multiply
    145,006,814.20x = 217,510,221.30 × 87,675,921.40
  4. Step 4: Simplify right side
    145,006,814.20x = 19,070,409,066,395,408
  5. Step 5: Solve for x
    x = 19,070,409,066,395,408/145,006,814.20
  6. Step 6: Final answer
    x = 131,513,882.10

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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.