Home / 145,156,003.40-217,734,005.10-99,171,849.80

Finding the Fourth Proportional to 145,156,003.40, 217,734,005.10 and 99,171,849.80

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Solution

The fourth proportional to 145,156,003.40, 217,734,005.10 and 99,171,849.80 is: 148,757,774.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,156,003.40 : 217,734,005.10 = 99,171,849.80 : x
  2. Step 2: Convert to fraction form
    145,156,003.40/217,734,005.10 = 99,171,849.80/x
  3. Step 3: Cross multiply
    145,156,003.40x = 217,734,005.10 × 99,171,849.80
  4. Step 4: Simplify right side
    145,156,003.40x = 21,593,084,050,129,632
  5. Step 5: Solve for x
    x = 21,593,084,050,129,632/145,156,003.40
  6. Step 6: Final answer
    x = 148,757,774.70

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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.