Home / 10,020,455.24-15,033,394.74-7,145,454.20

Finding the Fourth Proportional to 10,020,455.24, 15,033,394.74 and 7,145,454.20

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Solution

The fourth proportional to 10,020,455.24, 15,033,394.74 and 7,145,454.20 is: 10,720,115.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,020,455.24 : 15,033,394.74 = 7,145,454.20 : x
  2. Step 2: Convert to fraction form
    10,020,455.24/15,033,394.74 = 7,145,454.20/x
  3. Step 3: Cross multiply
    10,020,455.24x = 15,033,394.74 × 7,145,454.20
  4. Step 4: Simplify right side
    10,020,455.24x = 107,420,433,585,190.91
  5. Step 5: Solve for x
    x = 107,420,433,585,190.91/10,020,455.24
  6. Step 6: Final answer
    x = 10,720,115.11

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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.