Home / 81,438,124.40-122,157,186.60-49,126,511.60

Finding the Fourth Proportional to 81,438,124.40, 122,157,186.60 and 49,126,511.60

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Solution

The fourth proportional to 81,438,124.40, 122,157,186.60 and 49,126,511.60 is: 73,689,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,438,124.40 : 122,157,186.60 = 49,126,511.60 : x
  2. Step 2: Convert to fraction form
    81,438,124.40/122,157,186.60 = 49,126,511.60/x
  3. Step 3: Cross multiply
    81,438,124.40x = 122,157,186.60 × 49,126,511.60
  4. Step 4: Simplify right side
    81,438,124.40x = 6,001,156,444,528,264
  5. Step 5: Solve for x
    x = 6,001,156,444,528,264/81,438,124.40
  6. Step 6: Final answer
    x = 73,689,767.40

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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.