Home / 12,997,890.28-17,937,648.84-7,196,671.96

Finding the Fourth Proportional to 12,997,890.28, 17,937,648.84 and 7,196,671.96

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Solution

The fourth proportional to 12,997,890.28, 17,937,648.84 and 7,196,671.96 is: 9,931,717.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,890.28 : 17,937,648.84 = 7,196,671.96 : x
  2. Step 2: Convert to fraction form
    12,997,890.28/17,937,648.84 = 7,196,671.96/x
  3. Step 3: Cross multiply
    12,997,890.28x = 17,937,648.84 × 7,196,671.96
  4. Step 4: Simplify right side
    12,997,890.28x = 129,091,374,435,154.53
  5. Step 5: Solve for x
    x = 129,091,374,435,154.53/12,997,890.28
  6. Step 6: Final answer
    x = 9,931,717.51

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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.