Home / 12,817,865.16-17,688,652.68-7,016,650.92

Finding the Fourth Proportional to 12,817,865.16, 17,688,652.68 and 7,016,650.92

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Solution

The fourth proportional to 12,817,865.16, 17,688,652.68 and 7,016,650.92 is: 9,682,977.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,817,865.16 : 17,688,652.68 = 7,016,650.92 : x
  2. Step 2: Convert to fraction form
    12,817,865.16/17,688,652.68 = 7,016,650.92/x
  3. Step 3: Cross multiply
    12,817,865.16x = 17,688,652.68 × 7,016,650.92
  4. Step 4: Simplify right side
    12,817,865.16x = 124,115,101,100,682.47
  5. Step 5: Solve for x
    x = 124,115,101,100,682.47/12,817,865.16
  6. Step 6: Final answer
    x = 9,682,977.59

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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.