Home / 85,770,775.20-128,678,972.40-37,227,799.20

Finding the Fourth Proportional to 85,770,775.20, 128,678,972.40 and 37,227,799.20

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Solution

The fourth proportional to 85,770,775.20, 128,678,972.40 and 37,227,799.20 is: 55,851,599.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,770,775.20 : 128,678,972.40 = 37,227,799.20 : x
  2. Step 2: Convert to fraction form
    85,770,775.20/128,678,972.40 = 37,227,799.20/x
  3. Step 3: Cross multiply
    85,770,775.20x = 128,678,972.40 × 37,227,799.20
  4. Step 4: Simplify right side
    85,770,775.20x = 4,790,434,945,769,543
  5. Step 5: Solve for x
    x = 4,790,434,945,769,543/85,770,775.20
  6. Step 6: Final answer
    x = 55,851,599.04

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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.