Home / 28,025,237.40-42,037,856.10-12,879,168.90

Finding the Fourth Proportional to 28,025,237.40, 42,037,856.10 and 12,879,168.90

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Solution

The fourth proportional to 28,025,237.40, 42,037,856.10 and 12,879,168.90 is: 19,318,753.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025,237.40 : 42,037,856.10 = 12,879,168.90 : x
  2. Step 2: Convert to fraction form
    28,025,237.40/42,037,856.10 = 12,879,168.90/x
  3. Step 3: Cross multiply
    28,025,237.40x = 42,037,856.10 × 12,879,168.90
  4. Step 4: Simplify right side
    28,025,237.40x = 541,412,648,905,795.31
  5. Step 5: Solve for x
    x = 541,412,648,905,795.31/28,025,237.40
  6. Step 6: Final answer
    x = 19,318,753.35

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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.