Home / 161,720,909.70-242,581,364.55-157,469,381.70

Finding the Fourth Proportional to 161,720,909.70, 242,581,364.55 and 157,469,381.70

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Solution

The fourth proportional to 161,720,909.70, 242,581,364.55 and 157,469,381.70 is: 236,204,072.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,720,909.70 : 242,581,364.55 = 157,469,381.70 : x
  2. Step 2: Convert to fraction form
    161,720,909.70/242,581,364.55 = 157,469,381.70/x
  3. Step 3: Cross multiply
    161,720,909.70x = 242,581,364.55 × 157,469,381.70
  4. Step 4: Simplify right side
    161,720,909.70x = 38,199,137,487,630,800
  5. Step 5: Solve for x
    x = 38,199,137,487,630,800/161,720,909.70
  6. Step 6: Final answer
    x = 236,204,072.55

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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.