Home / 82,176,436.80-123,264,655.20-39,709,108.80

Finding the Fourth Proportional to 82,176,436.80, 123,264,655.20 and 39,709,108.80

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Solution

The fourth proportional to 82,176,436.80, 123,264,655.20 and 39,709,108.80 is: 59,563,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,176,436.80 : 123,264,655.20 = 39,709,108.80 : x
  2. Step 2: Convert to fraction form
    82,176,436.80/123,264,655.20 = 39,709,108.80/x
  3. Step 3: Cross multiply
    82,176,436.80x = 123,264,655.20 × 39,709,108.80
  4. Step 4: Simplify right side
    82,176,436.80x = 4,894,729,604,531,286
  5. Step 5: Solve for x
    x = 4,894,729,604,531,286/82,176,436.80
  6. Step 6: Final answer
    x = 59,563,663.20

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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.