Home / 67,979,632.07-101,989,346.03-21,920,574.78

Finding the Fourth Proportional to 67,979,632.07, 101,989,346.03 and 21,920,574.78

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Solution

The fourth proportional to 67,979,632.07, 101,989,346.03 and 21,920,574.78 is: 32,887,278.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,979,632.07 : 101,989,346.03 = 21,920,574.78 : x
  2. Step 2: Convert to fraction form
    67,979,632.07/101,989,346.03 = 21,920,574.78/x
  3. Step 3: Cross multiply
    67,979,632.07x = 101,989,346.03 × 21,920,574.78
  4. Step 4: Simplify right side
    67,979,632.07x = 2,235,665,086,386,510.50
  5. Step 5: Solve for x
    x = 2,235,665,086,386,510.50/67,979,632.07
  6. Step 6: Final answer
    x = 32,887,278.42

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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.