Home / 40,420,379.70-60,639,426.90-19,959,901.20

Finding the Fourth Proportional to 40,420,379.70, 60,639,426.90 and 19,959,901.20

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Solution

The fourth proportional to 40,420,379.70, 60,639,426.90 and 19,959,901.20 is: 29,944,225.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,420,379.70 : 60,639,426.90 = 19,959,901.20 : x
  2. Step 2: Convert to fraction form
    40,420,379.70/60,639,426.90 = 19,959,901.20/x
  3. Step 3: Cross multiply
    40,420,379.70x = 60,639,426.90 × 19,959,901.20
  4. Step 4: Simplify right side
    40,420,379.70x = 1,210,356,969,748,622.25
  5. Step 5: Solve for x
    x = 1,210,356,969,748,622.25/40,420,379.70
  6. Step 6: Final answer
    x = 29,944,225.63

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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.