Home / 418,565,514.70-627,848,272.05-127,430,325.10

Finding the Fourth Proportional to 418,565,514.70, 627,848,272.05 and 127,430,325.10

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Solution

The fourth proportional to 418,565,514.70, 627,848,272.05 and 127,430,325.10 is: 191,145,487.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,565,514.70 : 627,848,272.05 = 127,430,325.10 : x
  2. Step 2: Convert to fraction form
    418,565,514.70/627,848,272.05 = 127,430,325.10/x
  3. Step 3: Cross multiply
    418,565,514.70x = 627,848,272.05 × 127,430,325.10
  4. Step 4: Simplify right side
    418,565,514.70x = 80,006,909,420,804,736
  5. Step 5: Solve for x
    x = 80,006,909,420,804,736/418,565,514.70
  6. Step 6: Final answer
    x = 191,145,487.65

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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.