Home / 999,148,481.22-1,378,841,235.12-547,018,909.86

Finding the Fourth Proportional to 999,148,481.22, 1,378,841,235.12 and 547,018,909.86

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Solution

The fourth proportional to 999,148,481.22, 1,378,841,235.12 and 547,018,909.86 is: 754,895,036.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,148,481.22 : 1,378,841,235.12 = 547,018,909.86 : x
  2. Step 2: Convert to fraction form
    999,148,481.22/1,378,841,235.12 = 547,018,909.86/x
  3. Step 3: Cross multiply
    999,148,481.22x = 1,378,841,235.12 × 547,018,909.86
  4. Step 4: Simplify right side
    999,148,481.22x = 754,252,229,305,358,336
  5. Step 5: Solve for x
    x = 754,252,229,305,358,336/999,148,481.22
  6. Step 6: Final answer
    x = 754,895,036.61

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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.