Home / 13,309,211.93-18,366,767.81-7,197,640.43

Finding the Fourth Proportional to 13,309,211.93, 18,366,767.81 and 7,197,640.43

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Solution

The fourth proportional to 13,309,211.93, 18,366,767.81 and 7,197,640.43 is: 9,932,773.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,211.93 : 18,366,767.81 = 7,197,640.43 : x
  2. Step 2: Convert to fraction form
    13,309,211.93/18,366,767.81 = 7,197,640.43/x
  3. Step 3: Cross multiply
    13,309,211.93x = 18,366,767.81 × 7,197,640.43
  4. Step 4: Simplify right side
    13,309,211.93x = 132,197,390,429,856.52
  5. Step 5: Solve for x
    x = 132,197,390,429,856.52/13,309,211.93
  6. Step 6: Final answer
    x = 9,932,773.72

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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.