Home / 91,888,500.60-137,664,789.30-74,756,417.40

Finding the Fourth Proportional to 91,888,500.60, 137,664,789.30 and 74,756,417.40

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Solution

The fourth proportional to 91,888,500.60, 137,664,789.30 and 74,756,417.40 is: 111,997,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,888,500.60 : 137,664,789.30 = 74,756,417.40 : x
  2. Step 2: Convert to fraction form
    91,888,500.60/137,664,789.30 = 74,756,417.40/x
  3. Step 3: Cross multiply
    91,888,500.60x = 137,664,789.30 × 74,756,417.40
  4. Step 4: Simplify right side
    91,888,500.60x = 10,291,326,450,193,856
  5. Step 5: Solve for x
    x = 10,291,326,450,193,856/91,888,500.60
  6. Step 6: Final answer
    x = 111,997,979.98

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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.