Home / 78,836,885.40-108,732,445.02-47,896,181.40

Finding the Fourth Proportional to 78,836,885.40, 108,732,445.02 and 47,896,181.40

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Solution

The fourth proportional to 78,836,885.40, 108,732,445.02 and 47,896,181.40 is: 66,058,785.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,836,885.40 : 108,732,445.02 = 47,896,181.40 : x
  2. Step 2: Convert to fraction form
    78,836,885.40/108,732,445.02 = 47,896,181.40/x
  3. Step 3: Cross multiply
    78,836,885.40x = 108,732,445.02 × 47,896,181.40
  4. Step 4: Simplify right side
    78,836,885.40x = 5,207,868,910,743,446
  5. Step 5: Solve for x
    x = 5,207,868,910,743,446/78,836,885.40
  6. Step 6: Final answer
    x = 66,058,785.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.