Home / 6,518,518.40-9,777,777.60-6,471,279.20

Finding the Fourth Proportional to 6,518,518.40, 9,777,777.60 and 6,471,279.20

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Solution

The fourth proportional to 6,518,518.40, 9,777,777.60 and 6,471,279.20 is: 9,706,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,518,518.40 : 9,777,777.60 = 6,471,279.20 : x
  2. Step 2: Convert to fraction form
    6,518,518.40/9,777,777.60 = 6,471,279.20/x
  3. Step 3: Cross multiply
    6,518,518.40x = 9,777,777.60 × 6,471,279.20
  4. Step 4: Simplify right side
    6,518,518.40x = 63,274,728,805,105.92
  5. Step 5: Solve for x
    x = 63,274,728,805,105.92/6,518,518.40
  6. Step 6: Final answer
    x = 9,706,918.80

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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.