Home / 135,155,435.18-186,513,375.75-76,429,631.66

Finding the Fourth Proportional to 135,155,435.18, 186,513,375.75 and 76,429,631.66

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Solution

The fourth proportional to 135,155,435.18, 186,513,375.75 and 76,429,631.66 is: 105,472,255.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,155,435.18 : 186,513,375.75 = 76,429,631.66 : x
  2. Step 2: Convert to fraction form
    135,155,435.18/186,513,375.75 = 76,429,631.66/x
  3. Step 3: Cross multiply
    135,155,435.18x = 186,513,375.75 × 76,429,631.66
  4. Step 4: Simplify right side
    135,155,435.18x = 14,255,148,608,235,676
  5. Step 5: Solve for x
    x = 14,255,148,608,235,676/135,155,435.18
  6. Step 6: Final answer
    x = 105,472,255.62

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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.