Home / 88,128,000.30-132,192,000.45-78,302,246.70

Finding the Fourth Proportional to 88,128,000.30, 132,192,000.45 and 78,302,246.70

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Solution

The fourth proportional to 88,128,000.30, 132,192,000.45 and 78,302,246.70 is: 117,453,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,128,000.30 : 132,192,000.45 = 78,302,246.70 : x
  2. Step 2: Convert to fraction form
    88,128,000.30/132,192,000.45 = 78,302,246.70/x
  3. Step 3: Cross multiply
    88,128,000.30x = 132,192,000.45 × 78,302,246.70
  4. Step 4: Simplify right side
    88,128,000.30x = 10,350,930,631,002,412
  5. Step 5: Solve for x
    x = 10,350,930,631,002,412/88,128,000.30
  6. Step 6: Final answer
    x = 117,453,370.05

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1.5x scale

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.