Home / 12,977,671.28-17,909,302.92-7,176,845.84

Finding the Fourth Proportional to 12,977,671.28, 17,909,302.92 and 7,176,845.84

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Solution

The fourth proportional to 12,977,671.28, 17,909,302.92 and 7,176,845.84 is: 9,904,111.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,977,671.28 : 17,909,302.92 = 7,176,845.84 : x
  2. Step 2: Convert to fraction form
    12,977,671.28/17,909,302.92 = 7,176,845.84/x
  3. Step 3: Cross multiply
    12,977,671.28x = 17,909,302.92 × 7,176,845.84
  4. Step 4: Simplify right side
    12,977,671.28x = 128,532,306,158,701.86
  5. Step 5: Solve for x
    x = 128,532,306,158,701.86/12,977,671.28
  6. Step 6: Final answer
    x = 9,904,111.72

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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.