Home / 87,243,080.40-130,752,646.20-53,128,213.20

Finding the Fourth Proportional to 87,243,080.40, 130,752,646.20 and 53,128,213.20

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Solution

The fourth proportional to 87,243,080.40, 130,752,646.20 and 53,128,213.20 is: 79,624,131.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,243,080.40 : 130,752,646.20 = 53,128,213.20 : x
  2. Step 2: Convert to fraction form
    87,243,080.40/130,752,646.20 = 53,128,213.20/x
  3. Step 3: Cross multiply
    87,243,080.40x = 130,752,646.20 × 53,128,213.20
  4. Step 4: Simplify right side
    87,243,080.40x = 6,946,654,463,777,770
  5. Step 5: Solve for x
    x = 6,946,654,463,777,770/87,243,080.40
  6. Step 6: Final answer
    x = 79,624,131.01

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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.