Home / 5,197,647.20-7,172,769.12-2,905,808

Finding the Fourth Proportional to 5,197,647.20, 7,172,769.12 and 2,905,808

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Solution

The fourth proportional to 5,197,647.20, 7,172,769.12 and 2,905,808 is: 4,010,023.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197,647.20 : 7,172,769.12 = 2,905,808 : x
  2. Step 2: Convert to fraction form
    5,197,647.20/7,172,769.12 = 2,905,808/x
  3. Step 3: Cross multiply
    5,197,647.20x = 7,172,769.12 × 2,905,808
  4. Step 4: Simplify right side
    5,197,647.20x = 20,842,689,891,048.96
  5. Step 5: Solve for x
    x = 20,842,689,891,048.96/5,197,647.20
  6. Step 6: Final answer
    x = 4,010,023.98

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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.