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Finding the Fourth Proportional to 665,088,251.60, 997,632,377.40 and 545,648,891.60

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Solution

The fourth proportional to 665,088,251.60, 997,632,377.40 and 545,648,891.60 is: 818,473,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,088,251.60 : 997,632,377.40 = 545,648,891.60 : x
  2. Step 2: Convert to fraction form
    665,088,251.60/997,632,377.40 = 545,648,891.60/x
  3. Step 3: Cross multiply
    665,088,251.60x = 997,632,377.40 × 545,648,891.60
  4. Step 4: Simplify right side
    665,088,251.60x = 544,357,000,952,582,912
  5. Step 5: Solve for x
    x = 544,357,000,952,582,912/665,088,251.60
  6. Step 6: Final answer
    x = 818,473,337.40

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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.