Home / 82,447,999.20-123,671,998.80-52,289,560.80

Finding the Fourth Proportional to 82,447,999.20, 123,671,998.80 and 52,289,560.80

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Solution

The fourth proportional to 82,447,999.20, 123,671,998.80 and 52,289,560.80 is: 78,434,341.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,447,999.20 : 123,671,998.80 = 52,289,560.80 : x
  2. Step 2: Convert to fraction form
    82,447,999.20/123,671,998.80 = 52,289,560.80/x
  3. Step 3: Cross multiply
    82,447,999.20x = 123,671,998.80 × 52,289,560.80
  4. Step 4: Simplify right side
    82,447,999.20x = 6,466,754,500,510,127
  5. Step 5: Solve for x
    x = 6,466,754,500,510,127/82,447,999.20
  6. Step 6: Final answer
    x = 78,434,341.20

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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.