Home / 18,715,000.05-28,072,500.08-15,975,126.45

Finding the Fourth Proportional to 18,715,000.05, 28,072,500.08 and 15,975,126.45

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Solution

The fourth proportional to 18,715,000.05, 28,072,500.08 and 15,975,126.45 is: 23,962,689.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715,000.05 : 28,072,500.08 = 15,975,126.45 : x
  2. Step 2: Convert to fraction form
    18,715,000.05/28,072,500.08 = 15,975,126.45/x
  3. Step 3: Cross multiply
    18,715,000.05x = 28,072,500.08 × 15,975,126.45
  4. Step 4: Simplify right side
    18,715,000.05x = 448,461,738,465,759.44
  5. Step 5: Solve for x
    x = 448,461,738,465,759.44/18,715,000.05
  6. Step 6: Final answer
    x = 23,962,689.68

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1.5x scale

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.