Home / 7,176,771.90-9,904,184.28-3,913,765.20

Finding the Fourth Proportional to 7,176,771.90, 9,904,184.28 and 3,913,765.20

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Solution

The fourth proportional to 7,176,771.90, 9,904,184.28 and 3,913,765.20 is: 5,401,126.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176,771.90 : 9,904,184.28 = 3,913,765.20 : x
  2. Step 2: Convert to fraction form
    7,176,771.90/9,904,184.28 = 3,913,765.20/x
  3. Step 3: Cross multiply
    7,176,771.90x = 9,904,184.28 × 3,913,765.20
  4. Step 4: Simplify right side
    7,176,771.90x = 38,762,651,769,451.05
  5. Step 5: Solve for x
    x = 38,762,651,769,451.05/7,176,771.90
  6. Step 6: Final answer
    x = 5,401,126.34

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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.