Home / 99,620,443.20-149,430,664.80-82,614,331.20

Finding the Fourth Proportional to 99,620,443.20, 149,430,664.80 and 82,614,331.20

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Solution

The fourth proportional to 99,620,443.20, 149,430,664.80 and 82,614,331.20 is: 123,921,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,620,443.20 : 149,430,664.80 = 82,614,331.20 : x
  2. Step 2: Convert to fraction form
    99,620,443.20/149,430,664.80 = 82,614,331.20/x
  3. Step 3: Cross multiply
    99,620,443.20x = 149,430,664.80 × 82,614,331.20
  4. Step 4: Simplify right side
    99,620,443.20x = 12,345,114,433,223,384
  5. Step 5: Solve for x
    x = 12,345,114,433,223,384/99,620,443.20
  6. Step 6: Final answer
    x = 123,921,496.80

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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.