Home / 768,059,773.85-1,059,663,025.13-500,013,555.18

Finding the Fourth Proportional to 768,059,773.85, 1,059,663,025.13 and 500,013,555.18

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Solution

The fourth proportional to 768,059,773.85, 1,059,663,025.13 and 500,013,555.18 is: 689,849,793.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,059,773.85 : 1,059,663,025.13 = 500,013,555.18 : x
  2. Step 2: Convert to fraction form
    768,059,773.85/1,059,663,025.13 = 500,013,555.18/x
  3. Step 3: Cross multiply
    768,059,773.85x = 1,059,663,025.13 × 500,013,555.18
  4. Step 4: Simplify right side
    768,059,773.85x = 529,845,876,488,044,992
  5. Step 5: Solve for x
    x = 529,845,876,488,044,992/768,059,773.85
  6. Step 6: Final answer
    x = 689,849,793.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.