Home / 12,948,817.92-17,869,366.02-7,147,598.16

Finding the Fourth Proportional to 12,948,817.92, 17,869,366.02 and 7,147,598.16

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Solution

The fourth proportional to 12,948,817.92, 17,869,366.02 and 7,147,598.16 is: 9,863,683.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,817.92 : 17,869,366.02 = 7,147,598.16 : x
  2. Step 2: Convert to fraction form
    12,948,817.92/17,869,366.02 = 7,147,598.16/x
  3. Step 3: Cross multiply
    12,948,817.92x = 17,869,366.02 × 7,147,598.16
  4. Step 4: Simplify right side
    12,948,817.92x = 127,723,047,684,918.52
  5. Step 5: Solve for x
    x = 127,723,047,684,918.52/12,948,817.92
  6. Step 6: Final answer
    x = 9,863,683.97

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Double scale
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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.