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Finding the Fourth Proportional to 7,668,313.80, 11,488,473.90 and 6,240,640.20

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Solution

The fourth proportional to 7,668,313.80, 11,488,473.90 and 6,240,640.20 is: 9,349,569.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,668,313.80 : 11,488,473.90 = 6,240,640.20 : x
  2. Step 2: Convert to fraction form
    7,668,313.80/11,488,473.90 = 6,240,640.20/x
  3. Step 3: Cross multiply
    7,668,313.80x = 11,488,473.90 × 6,240,640.20
  4. Step 4: Simplify right side
    7,668,313.80x = 71,695,432,056,990.78
  5. Step 5: Solve for x
    x = 71,695,432,056,990.78/7,668,313.80
  6. Step 6: Final answer
    x = 9,349,569.40

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1.5x scale

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.