Home / 3,123,188.10-4,310,011.20-1,816,753.68

Finding the Fourth Proportional to 3,123,188.10, 4,310,011.20 and 1,816,753.68

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Solution

The fourth proportional to 3,123,188.10, 4,310,011.20 and 1,816,753.68 is: 2,507,126.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123,188.10 : 4,310,011.20 = 1,816,753.68 : x
  2. Step 2: Convert to fraction form
    3,123,188.10/4,310,011.20 = 1,816,753.68/x
  3. Step 3: Cross multiply
    3,123,188.10x = 4,310,011.20 × 1,816,753.68
  4. Step 4: Simplify right side
    3,123,188.10x = 7,830,228,708,441.22
  5. Step 5: Solve for x
    x = 7,830,228,708,441.22/3,123,188.10
  6. Step 6: Final answer
    x = 2,507,126.84

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.