Home / 5,472,015.20-8,208,022.80-5,178,082.40

Finding the Fourth Proportional to 5,472,015.20, 8,208,022.80 and 5,178,082.40

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Solution

The fourth proportional to 5,472,015.20, 8,208,022.80 and 5,178,082.40 is: 7,767,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,472,015.20 : 8,208,022.80 = 5,178,082.40 : x
  2. Step 2: Convert to fraction form
    5,472,015.20/8,208,022.80 = 5,178,082.40/x
  3. Step 3: Cross multiply
    5,472,015.20x = 8,208,022.80 × 5,178,082.40
  4. Step 4: Simplify right side
    5,472,015.20x = 42,501,818,399,478.72
  5. Step 5: Solve for x
    x = 42,501,818,399,478.72/5,472,015.20
  6. Step 6: Final answer
    x = 7,767,123.60

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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.