Home / 12,671,689.95-17,486,826.53-7,166,145.69

Finding the Fourth Proportional to 12,671,689.95, 17,486,826.53 and 7,166,145.69

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Solution

The fourth proportional to 12,671,689.95, 17,486,826.53 and 7,166,145.69 is: 9,889,221.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671,689.95 : 17,486,826.53 = 7,166,145.69 : x
  2. Step 2: Convert to fraction form
    12,671,689.95/17,486,826.53 = 7,166,145.69/x
  3. Step 3: Cross multiply
    12,671,689.95x = 17,486,826.53 × 7,166,145.69
  4. Step 4: Simplify right side
    12,671,689.95x = 125,313,146,533,906.42
  5. Step 5: Solve for x
    x = 125,313,146,533,906.42/12,671,689.95
  6. Step 6: Final answer
    x = 9,889,221.33

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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.