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Finding the Fourth Proportional to 666,794,404.80, 1,000,191,607.20 and 629,380,958.40

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Solution

The fourth proportional to 666,794,404.80, 1,000,191,607.20 and 629,380,958.40 is: 944,071,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,794,404.80 : 1,000,191,607.20 = 629,380,958.40 : x
  2. Step 2: Convert to fraction form
    666,794,404.80/1,000,191,607.20 = 629,380,958.40/x
  3. Step 3: Cross multiply
    666,794,404.80x = 1,000,191,607.20 × 629,380,958.40
  4. Step 4: Simplify right side
    666,794,404.80x = 629,501,552,323,172,352
  5. Step 5: Solve for x
    x = 629,501,552,323,172,352/666,794,404.80
  6. Step 6: Final answer
    x = 944,071,437.60

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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.