Home / 87,760,816.97-121,051,612.28-56,438,466.89

Finding the Fourth Proportional to 87,760,816.97, 121,051,612.28 and 56,438,466.89

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Solution

The fourth proportional to 87,760,816.97, 121,051,612.28 and 56,438,466.89 is: 77,847,582.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,760,816.97 : 121,051,612.28 = 56,438,466.89 : x
  2. Step 2: Convert to fraction form
    87,760,816.97/121,051,612.28 = 56,438,466.89/x
  3. Step 3: Cross multiply
    87,760,816.97x = 121,051,612.28 × 56,438,466.89
  4. Step 4: Simplify right side
    87,760,816.97x = 6,831,967,410,758,447
  5. Step 5: Solve for x
    x = 6,831,967,410,758,447/87,760,816.97
  6. Step 6: Final answer
    x = 77,847,582.18

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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.