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Finding the Fourth Proportional to 499,921,327.10, 698,167,989.10 and 499,921,327.10

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Solution

The fourth proportional to 499,921,327.10, 698,167,989.10 and 499,921,327.10 is: 698,167,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,921,327.10 : 698,167,989.10 = 499,921,327.10 : x
  2. Step 2: Convert to fraction form
    499,921,327.10/698,167,989.10 = 499,921,327.10/x
  3. Step 3: Cross multiply
    499,921,327.10x = 698,167,989.10 × 499,921,327.10
  4. Step 4: Simplify right side
    499,921,327.10x = 349,029,067,649,610,368
  5. Step 5: Solve for x
    x = 349,029,067,649,610,368/499,921,327.10
  6. Step 6: Final answer
    x = 698,167,989.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.