Home / 28,247,618.40-42,371,427.60-7,777,298.40

Finding the Fourth Proportional to 28,247,618.40, 42,371,427.60 and 7,777,298.40

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Solution

The fourth proportional to 28,247,618.40, 42,371,427.60 and 7,777,298.40 is: 11,665,947.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247,618.40 : 42,371,427.60 = 7,777,298.40 : x
  2. Step 2: Convert to fraction form
    28,247,618.40/42,371,427.60 = 7,777,298.40/x
  3. Step 3: Cross multiply
    28,247,618.40x = 42,371,427.60 × 7,777,298.40
  4. Step 4: Simplify right side
    28,247,618.40x = 329,535,236,079,195.88
  5. Step 5: Solve for x
    x = 329,535,236,079,195.88/28,247,618.40
  6. Step 6: Final answer
    x = 11,665,947.60

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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.