Home / 3,403,829.10-5,105,743.65-3,120,393.90

Finding the Fourth Proportional to 3,403,829.10, 5,105,743.65 and 3,120,393.90

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Solution

The fourth proportional to 3,403,829.10, 5,105,743.65 and 3,120,393.90 is: 4,680,590.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403,829.10 : 5,105,743.65 = 3,120,393.90 : x
  2. Step 2: Convert to fraction form
    3,403,829.10/5,105,743.65 = 3,120,393.90/x
  3. Step 3: Cross multiply
    3,403,829.10x = 5,105,743.65 × 3,120,393.90
  4. Step 4: Simplify right side
    3,403,829.10x = 15,931,931,340,423.74
  5. Step 5: Solve for x
    x = 15,931,931,340,423.74/3,403,829.10
  6. Step 6: Final answer
    x = 4,680,590.85

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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.