Home / 161,693,396.40-242,550,592.20-85,165,892.40

Finding the Fourth Proportional to 161,693,396.40, 242,550,592.20 and 85,165,892.40

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Solution

The fourth proportional to 161,693,396.40, 242,550,592.20 and 85,165,892.40 is: 127,754,367.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,693,396.40 : 242,550,592.20 = 85,165,892.40 : x
  2. Step 2: Convert to fraction form
    161,693,396.40/242,550,592.20 = 85,165,892.40/x
  3. Step 3: Cross multiply
    161,693,396.40x = 242,550,592.20 × 85,165,892.40
  4. Step 4: Simplify right side
    161,693,396.40x = 20,657,037,636,861,480
  5. Step 5: Solve for x
    x = 20,657,037,636,861,480/161,693,396.40
  6. Step 6: Final answer
    x = 127,754,367.81

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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.