Home / 90,706,098.98-135,995,356.11-42,132,381.86

Finding the Fourth Proportional to 90,706,098.98, 135,995,356.11 and 42,132,381.86

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Solution

The fourth proportional to 90,706,098.98, 135,995,356.11 and 42,132,381.86 is: 63,168,941.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,706,098.98 : 135,995,356.11 = 42,132,381.86 : x
  2. Step 2: Convert to fraction form
    90,706,098.98/135,995,356.11 = 42,132,381.86/x
  3. Step 3: Cross multiply
    90,706,098.98x = 135,995,356.11 × 42,132,381.86
  4. Step 4: Simplify right side
    90,706,098.98x = 5,729,808,275,311,189
  5. Step 5: Solve for x
    x = 5,729,808,275,311,189/90,706,098.98
  6. Step 6: Final answer
    x = 63,168,941.67

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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.