Home / 87,243,082.40-130,752,649.20-53,128,215.20

Finding the Fourth Proportional to 87,243,082.40, 130,752,649.20 and 53,128,215.20

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Solution

The fourth proportional to 87,243,082.40, 130,752,649.20 and 53,128,215.20 is: 79,624,134.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,243,082.40 : 130,752,649.20 = 53,128,215.20 : x
  2. Step 2: Convert to fraction form
    87,243,082.40/130,752,649.20 = 53,128,215.20/x
  3. Step 3: Cross multiply
    87,243,082.40x = 130,752,649.20 × 53,128,215.20
  4. Step 4: Simplify right side
    87,243,082.40x = 6,946,654,884,667,708
  5. Step 5: Solve for x
    x = 6,946,654,884,667,708/87,243,082.40
  6. Step 6: Final answer
    x = 79,624,134.01

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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.