Home / 81,999,838.08-123,045,157.20-49,129,631

Finding the Fourth Proportional to 81,999,838.08, 123,045,157.20 and 49,129,631

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Solution

The fourth proportional to 81,999,838.08, 123,045,157.20 and 49,129,631 is: 73,721,647.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,999,838.08 : 123,045,157.20 = 49,129,631 : x
  2. Step 2: Convert to fraction form
    81,999,838.08/123,045,157.20 = 49,129,631/x
  3. Step 3: Cross multiply
    81,999,838.08x = 123,045,157.20 × 49,129,631
  4. Step 4: Simplify right side
    81,999,838.08x = 6,045,163,169,572,993
  5. Step 5: Solve for x
    x = 6,045,163,169,572,993/81,999,838.08
  6. Step 6: Final answer
    x = 73,721,647.64

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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.