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Finding the Fourth Proportional to 266,061,703.80, 399,092,555.70 and 175,287,790.20

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Solution

The fourth proportional to 266,061,703.80, 399,092,555.70 and 175,287,790.20 is: 262,931,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,061,703.80 : 399,092,555.70 = 175,287,790.20 : x
  2. Step 2: Convert to fraction form
    266,061,703.80/399,092,555.70 = 175,287,790.20/x
  3. Step 3: Cross multiply
    266,061,703.80x = 399,092,555.70 × 175,287,790.20
  4. Step 4: Simplify right side
    266,061,703.80x = 69,956,052,173,923,408
  5. Step 5: Solve for x
    x = 69,956,052,173,923,408/266,061,703.80
  6. Step 6: Final answer
    x = 262,931,685.30

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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.