Home / 87,308,809.20-130,963,213.80-83,057,281.20

Finding the Fourth Proportional to 87,308,809.20, 130,963,213.80 and 83,057,281.20

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Solution

The fourth proportional to 87,308,809.20, 130,963,213.80 and 83,057,281.20 is: 124,585,921.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,308,809.20 : 130,963,213.80 = 83,057,281.20 : x
  2. Step 2: Convert to fraction form
    87,308,809.20/130,963,213.80 = 83,057,281.20/x
  3. Step 3: Cross multiply
    87,308,809.20x = 130,963,213.80 × 83,057,281.20
  4. Step 4: Simplify right side
    87,308,809.20x = 10,877,448,475,442,320
  5. Step 5: Solve for x
    x = 10,877,448,475,442,320/87,308,809.20
  6. Step 6: Final answer
    x = 124,585,921.80

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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.