Home / 28,031,474.20-42,047,211.30-8,868,105.40

Finding the Fourth Proportional to 28,031,474.20, 42,047,211.30 and 8,868,105.40

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Solution

The fourth proportional to 28,031,474.20, 42,047,211.30 and 8,868,105.40 is: 13,302,158.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031,474.20 : 42,047,211.30 = 8,868,105.40 : x
  2. Step 2: Convert to fraction form
    28,031,474.20/42,047,211.30 = 8,868,105.40/x
  3. Step 3: Cross multiply
    28,031,474.20x = 42,047,211.30 × 8,868,105.40
  4. Step 4: Simplify right side
    28,031,474.20x = 372,879,101,584,471
  5. Step 5: Solve for x
    x = 372,879,101,584,471/28,031,474.20
  6. Step 6: Final answer
    x = 13,302,158.10

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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.