Home / 90,788,401.53-125,141,635.26-61,409,019.92

Finding the Fourth Proportional to 90,788,401.53, 125,141,635.26 and 61,409,019.92

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Solution

The fourth proportional to 90,788,401.53, 125,141,635.26 and 61,409,019.92 is: 84,645,450.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,788,401.53 : 125,141,635.26 = 61,409,019.92 : x
  2. Step 2: Convert to fraction form
    90,788,401.53/125,141,635.26 = 61,409,019.92/x
  3. Step 3: Cross multiply
    90,788,401.53x = 125,141,635.26 × 61,409,019.92
  4. Step 4: Simplify right side
    90,788,401.53x = 7,684,825,171,877,006
  5. Step 5: Solve for x
    x = 7,684,825,171,877,006/90,788,401.53
  6. Step 6: Final answer
    x = 84,645,450.77

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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.