Home / 81,993,876.40-122,934,827.40-38,883,732.40

Finding the Fourth Proportional to 81,993,876.40, 122,934,827.40 and 38,883,732.40

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Solution

The fourth proportional to 81,993,876.40, 122,934,827.40 and 38,883,732.40 is: 58,299,047.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,993,876.40 : 122,934,827.40 = 38,883,732.40 : x
  2. Step 2: Convert to fraction form
    81,993,876.40/122,934,827.40 = 38,883,732.40/x
  3. Step 3: Cross multiply
    81,993,876.40x = 122,934,827.40 × 38,883,732.40
  4. Step 4: Simplify right side
    81,993,876.40x = 4,780,164,931,261,788
  5. Step 5: Solve for x
    x = 4,780,164,931,261,788/81,993,876.40
  6. Step 6: Final answer
    x = 58,299,047.94

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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.