Home / 12,811,124.16-17,679,500.64-7,010,020.80

Finding the Fourth Proportional to 12,811,124.16, 17,679,500.64 and 7,010,020.80

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Solution

The fourth proportional to 12,811,124.16, 17,679,500.64 and 7,010,020.80 is: 9,673,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811,124.16 : 17,679,500.64 = 7,010,020.80 : x
  2. Step 2: Convert to fraction form
    12,811,124.16/17,679,500.64 = 7,010,020.80/x
  3. Step 3: Cross multiply
    12,811,124.16x = 17,679,500.64 × 7,010,020.80
  4. Step 4: Simplify right side
    12,811,124.16x = 123,933,667,220,013.31
  5. Step 5: Solve for x
    x = 123,933,667,220,013.31/12,811,124.16
  6. Step 6: Final answer
    x = 9,673,910.40

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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.