Home / 153,534,294.90-211,877,020.08-87,454,767.78

Finding the Fourth Proportional to 153,534,294.90, 211,877,020.08 and 87,454,767.78

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Solution

The fourth proportional to 153,534,294.90, 211,877,020.08 and 87,454,767.78 is: 120,687,404.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,534,294.90 : 211,877,020.08 = 87,454,767.78 : x
  2. Step 2: Convert to fraction form
    153,534,294.90/211,877,020.08 = 87,454,767.78/x
  3. Step 3: Cross multiply
    153,534,294.90x = 211,877,020.08 × 87,454,767.78
  4. Step 4: Simplify right side
    153,534,294.90x = 18,529,655,589,014,800
  5. Step 5: Solve for x
    x = 18,529,655,589,014,800/153,534,294.90
  6. Step 6: Final answer
    x = 120,687,404.73

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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.