Home / 402,930,876.86-604,519,663.11-206,333,488.40

Finding the Fourth Proportional to 402,930,876.86, 604,519,663.11 and 206,333,488.40

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Solution

The fourth proportional to 402,930,876.86, 604,519,663.11 and 206,333,488.40 is: 309,563,396.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,930,876.86 : 604,519,663.11 = 206,333,488.40 : x
  2. Step 2: Convert to fraction form
    402,930,876.86/604,519,663.11 = 206,333,488.40/x
  3. Step 3: Cross multiply
    402,930,876.86x = 604,519,663.11 × 206,333,488.40
  4. Step 4: Simplify right side
    402,930,876.86x = 124,732,650,895,897,200
  5. Step 5: Solve for x
    x = 124,732,650,895,897,200/402,930,876.86
  6. Step 6: Final answer
    x = 309,563,396.75

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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.