Home / 87,133,687.20-130,742,521.20-61,519,543.20

Finding the Fourth Proportional to 87,133,687.20, 130,742,521.20 and 61,519,543.20

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Solution

The fourth proportional to 87,133,687.20, 130,742,521.20 and 61,519,543.20 is: 92,308,961.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,133,687.20 : 130,742,521.20 = 61,519,543.20 : x
  2. Step 2: Convert to fraction form
    87,133,687.20/130,742,521.20 = 61,519,543.20/x
  3. Step 3: Cross multiply
    87,133,687.20x = 130,742,521.20 × 61,519,543.20
  4. Step 4: Simplify right side
    87,133,687.20x = 8,043,220,181,040,316
  5. Step 5: Solve for x
    x = 8,043,220,181,040,316/87,133,687.20
  6. Step 6: Final answer
    x = 92,308,961.55

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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.