Home / 90,578,982.95-124,982,391.83-53,420,890.67

Finding the Fourth Proportional to 90,578,982.95, 124,982,391.83 and 53,420,890.67

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Solution

The fourth proportional to 90,578,982.95, 124,982,391.83 and 53,420,890.67 is: 73,711,036.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,578,982.95 : 124,982,391.83 = 53,420,890.67 : x
  2. Step 2: Convert to fraction form
    90,578,982.95/124,982,391.83 = 53,420,890.67/x
  3. Step 3: Cross multiply
    90,578,982.95x = 124,982,391.83 × 53,420,890.67
  4. Step 4: Simplify right side
    90,578,982.95x = 6,676,670,689,202,199
  5. Step 5: Solve for x
    x = 6,676,670,689,202,199/90,578,982.95
  6. Step 6: Final answer
    x = 73,711,036.18

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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.