Home / 90,908,078.55-136,362,119.49-21,820,882.02

Finding the Fourth Proportional to 90,908,078.55, 136,362,119.49 and 21,820,882.02

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Solution

The fourth proportional to 90,908,078.55, 136,362,119.49 and 21,820,882.02 is: 32,731,323.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,908,078.55 : 136,362,119.49 = 21,820,882.02 : x
  2. Step 2: Convert to fraction form
    90,908,078.55/136,362,119.49 = 21,820,882.02/x
  3. Step 3: Cross multiply
    90,908,078.55x = 136,362,119.49 × 21,820,882.02
  4. Step 4: Simplify right side
    90,908,078.55x = 2,975,541,721,388,432.50
  5. Step 5: Solve for x
    x = 2,975,541,721,388,432.50/90,908,078.55
  6. Step 6: Final answer
    x = 32,731,323.43

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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.