Home / 7,171,110.40-9,895,780.02-3,907,915.02

Finding the Fourth Proportional to 7,171,110.40, 9,895,780.02 and 3,907,915.02

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Solution

The fourth proportional to 7,171,110.40, 9,895,780.02 and 3,907,915.02 is: 5,392,730.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171,110.40 : 9,895,780.02 = 3,907,915.02 : x
  2. Step 2: Convert to fraction form
    7,171,110.40/9,895,780.02 = 3,907,915.02/x
  3. Step 3: Cross multiply
    7,171,110.40x = 9,895,780.02 × 3,907,915.02
  4. Step 4: Simplify right side
    7,171,110.40x = 38,671,867,374,773.90
  5. Step 5: Solve for x
    x = 38,671,867,374,773.90/7,171,110.40
  6. Step 6: Final answer
    x = 5,392,730.72

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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.