Home / 90,761,187.84-136,143,648-30,177,441.28

Finding the Fourth Proportional to 90,761,187.84, 136,143,648 and 30,177,441.28

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Solution

The fourth proportional to 90,761,187.84, 136,143,648 and 30,177,441.28 is: 45,266,782.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,761,187.84 : 136,143,648 = 30,177,441.28 : x
  2. Step 2: Convert to fraction form
    90,761,187.84/136,143,648 = 30,177,441.28/x
  3. Step 3: Cross multiply
    90,761,187.84x = 136,143,648 × 30,177,441.28
  4. Step 4: Simplify right side
    90,761,187.84x = 4,108,466,943,164,989.50
  5. Step 5: Solve for x
    x = 4,108,466,943,164,989.50/90,761,187.84
  6. Step 6: Final answer
    x = 45,266,782.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.