Home / 12,970,687.08-17,897,718.87-7,389,080.40

Finding the Fourth Proportional to 12,970,687.08, 17,897,718.87 and 7,389,080.40

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Solution

The fourth proportional to 12,970,687.08, 17,897,718.87 and 7,389,080.40 is: 10,195,888.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,970,687.08 : 17,897,718.87 = 7,389,080.40 : x
  2. Step 2: Convert to fraction form
    12,970,687.08/17,897,718.87 = 7,389,080.40/x
  3. Step 3: Cross multiply
    12,970,687.08x = 17,897,718.87 × 7,389,080.40
  4. Step 4: Simplify right side
    12,970,687.08x = 132,247,683,707,027.16
  5. Step 5: Solve for x
    x = 132,247,683,707,027.16/12,970,687.08
  6. Step 6: Final answer
    x = 10,195,888.84

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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.