Home / 15,209,888.40-20,989,204.38-8,930,309.94

Finding the Fourth Proportional to 15,209,888.40, 20,989,204.38 and 8,930,309.94

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Solution

The fourth proportional to 15,209,888.40, 20,989,204.38 and 8,930,309.94 is: 12,323,568.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,209,888.40 : 20,989,204.38 = 8,930,309.94 : x
  2. Step 2: Convert to fraction form
    15,209,888.40/20,989,204.38 = 8,930,309.94/x
  3. Step 3: Cross multiply
    15,209,888.40x = 20,989,204.38 × 8,930,309.94
  4. Step 4: Simplify right side
    15,209,888.40x = 187,440,100,507,405.53
  5. Step 5: Solve for x
    x = 187,440,100,507,405.53/15,209,888.40
  6. Step 6: Final answer
    x = 12,323,568.43

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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.