Home / 7,254,381.40-10,881,572.10-5,128,617.40

Finding the Fourth Proportional to 7,254,381.40, 10,881,572.10 and 5,128,617.40

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Solution

The fourth proportional to 7,254,381.40, 10,881,572.10 and 5,128,617.40 is: 7,692,926.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,254,381.40 : 10,881,572.10 = 5,128,617.40 : x
  2. Step 2: Convert to fraction form
    7,254,381.40/10,881,572.10 = 5,128,617.40/x
  3. Step 3: Cross multiply
    7,254,381.40x = 10,881,572.10 × 5,128,617.40
  4. Step 4: Simplify right side
    7,254,381.40x = 55,807,420,011,414.54
  5. Step 5: Solve for x
    x = 55,807,420,011,414.54/7,254,381.40
  6. Step 6: Final answer
    x = 7,692,926.10

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.