Home / 90,578,983.95-124,982,393.20-53,420,891.67

Finding the Fourth Proportional to 90,578,983.95, 124,982,393.20 and 53,420,891.67

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Solution

The fourth proportional to 90,578,983.95, 124,982,393.20 and 53,420,891.67 is: 73,711,037.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,578,983.95 : 124,982,393.20 = 53,420,891.67 : x
  2. Step 2: Convert to fraction form
    90,578,983.95/124,982,393.20 = 53,420,891.67/x
  3. Step 3: Cross multiply
    90,578,983.95x = 124,982,393.20 × 53,420,891.67
  4. Step 4: Simplify right side
    90,578,983.95x = 6,676,670,887,794,545
  5. Step 5: Solve for x
    x = 6,676,670,887,794,545/90,578,983.95
  6. Step 6: Final answer
    x = 73,711,037.56

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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.