Home / 12,700,020.60-17,528,484.72-8,282,077.38

Finding the Fourth Proportional to 12,700,020.60, 17,528,484.72 and 8,282,077.38

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Solution

The fourth proportional to 12,700,020.60, 17,528,484.72 and 8,282,077.38 is: 11,430,868.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700,020.60 : 17,528,484.72 = 8,282,077.38 : x
  2. Step 2: Convert to fraction form
    12,700,020.60/17,528,484.72 = 8,282,077.38/x
  3. Step 3: Cross multiply
    12,700,020.60x = 17,528,484.72 × 8,282,077.38
  4. Step 4: Simplify right side
    12,700,020.60x = 145,172,266,805,187.62
  5. Step 5: Solve for x
    x = 145,172,266,805,187.62/12,700,020.60
  6. Step 6: Final answer
    x = 11,430,868.61

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1.5x scale

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.