Home / 18,708,538.20-28,041,812.10-10,625,386.20

Finding the Fourth Proportional to 18,708,538.20, 28,041,812.10 and 10,625,386.20

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Solution

The fourth proportional to 18,708,538.20, 28,041,812.10 and 10,625,386.20 is: 15,926,155.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708,538.20 : 28,041,812.10 = 10,625,386.20 : x
  2. Step 2: Convert to fraction form
    18,708,538.20/28,041,812.10 = 10,625,386.20/x
  3. Step 3: Cross multiply
    18,708,538.20x = 28,041,812.10 × 10,625,386.20
  4. Step 4: Simplify right side
    18,708,538.20x = 297,955,083,310,333
  5. Step 5: Solve for x
    x = 297,955,083,310,333/18,708,538.20
  6. Step 6: Final answer
    x = 15,926,155.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.