Home / 87,108,653.88-120,142,798.43-54,088,453.08

Finding the Fourth Proportional to 87,108,653.88, 120,142,798.43 and 54,088,453.08

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Solution

The fourth proportional to 87,108,653.88, 120,142,798.43 and 54,088,453.08 is: 74,600,373.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,108,653.88 : 120,142,798.43 = 54,088,453.08 : x
  2. Step 2: Convert to fraction form
    87,108,653.88/120,142,798.43 = 54,088,453.08/x
  3. Step 3: Cross multiply
    87,108,653.88x = 120,142,798.43 × 54,088,453.08
  4. Step 4: Simplify right side
    87,108,653.88x = 6,498,338,115,510,510
  5. Step 5: Solve for x
    x = 6,498,338,115,510,510/87,108,653.88
  6. Step 6: Final answer
    x = 74,600,373.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.