Home / 127,938,143.18-191,789,508.89-69,560,511.86

Finding the Fourth Proportional to 127,938,143.18, 191,789,508.89 and 69,560,511.86

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Solution

The fourth proportional to 127,938,143.18, 191,789,508.89 and 69,560,511.86 is: 104,276,770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,938,143.18 : 191,789,508.89 = 69,560,511.86 : x
  2. Step 2: Convert to fraction form
    127,938,143.18/191,789,508.89 = 69,560,511.86/x
  3. Step 3: Cross multiply
    127,938,143.18x = 191,789,508.89 × 69,560,511.86
  4. Step 4: Simplify right side
    127,938,143.18x = 13,340,976,407,766,420
  5. Step 5: Solve for x
    x = 13,340,976,407,766,420/127,938,143.18
  6. Step 6: Final answer
    x = 104,276,770.60

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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.