Home / 82,537,334.80-123,512,069.40-71,871,773.20

Finding the Fourth Proportional to 82,537,334.80, 123,512,069.40 and 71,871,773.20

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Solution

The fourth proportional to 82,537,334.80, 123,512,069.40 and 71,871,773.20 is: 107,551,709.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,537,334.80 : 123,512,069.40 = 71,871,773.20 : x
  2. Step 2: Convert to fraction form
    82,537,334.80/123,512,069.40 = 71,871,773.20/x
  3. Step 3: Cross multiply
    82,537,334.80x = 123,512,069.40 × 71,871,773.20
  4. Step 4: Simplify right side
    82,537,334.80x = 8,877,031,439,379,461
  5. Step 5: Solve for x
    x = 8,877,031,439,379,461/82,537,334.80
  6. Step 6: Final answer
    x = 107,551,709.31

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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.