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Finding the Fourth Proportional to 7,835,002.40, 11,752,503.60 and 5,147,616.80

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Solution

The fourth proportional to 7,835,002.40, 11,752,503.60 and 5,147,616.80 is: 7,721,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835,002.40 : 11,752,503.60 = 5,147,616.80 : x
  2. Step 2: Convert to fraction form
    7,835,002.40/11,752,503.60 = 5,147,616.80/x
  3. Step 3: Cross multiply
    7,835,002.40x = 11,752,503.60 × 5,147,616.80
  4. Step 4: Simplify right side
    7,835,002.40x = 60,497,384,973,420.48
  5. Step 5: Solve for x
    x = 60,497,384,973,420.48/7,835,002.40
  6. Step 6: Final answer
    x = 7,721,425.20

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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.