Home / 28,313,466.60-42,438,707.10-15,543,136.20

Finding the Fourth Proportional to 28,313,466.60, 42,438,707.10 and 15,543,136.20

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Solution

The fourth proportional to 28,313,466.60, 42,438,707.10 and 15,543,136.20 is: 23,297,415.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313,466.60 : 42,438,707.10 = 15,543,136.20 : x
  2. Step 2: Convert to fraction form
    28,313,466.60/42,438,707.10 = 15,543,136.20/x
  3. Step 3: Cross multiply
    28,313,466.60x = 42,438,707.10 × 15,543,136.20
  4. Step 4: Simplify right side
    28,313,466.60x = 659,630,604,607,207
  5. Step 5: Solve for x
    x = 659,630,604,607,207/28,313,466.60
  6. Step 6: Final answer
    x = 23,297,415.82

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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.