Home / 9,154,428.80-13,731,643.20-5,123,350.40

Finding the Fourth Proportional to 9,154,428.80, 13,731,643.20 and 5,123,350.40

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Solution

The fourth proportional to 9,154,428.80, 13,731,643.20 and 5,123,350.40 is: 7,685,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,154,428.80 : 13,731,643.20 = 5,123,350.40 : x
  2. Step 2: Convert to fraction form
    9,154,428.80/13,731,643.20 = 5,123,350.40/x
  3. Step 3: Cross multiply
    9,154,428.80x = 13,731,643.20 × 5,123,350.40
  4. Step 4: Simplify right side
    9,154,428.80x = 70,352,019,681,377.28
  5. Step 5: Solve for x
    x = 70,352,019,681,377.28/9,154,428.80
  6. Step 6: Final answer
    x = 7,685,025.60

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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.