Home / 28,039,709.20-42,063,500.40-8,868,467.20

Finding the Fourth Proportional to 28,039,709.20, 42,063,500.40 and 8,868,467.20

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Solution

The fourth proportional to 28,039,709.20, 42,063,500.40 and 8,868,467.20 is: 13,303,945.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,039,709.20 : 42,063,500.40 = 8,868,467.20 : x
  2. Step 2: Convert to fraction form
    28,039,709.20/42,063,500.40 = 8,868,467.20/x
  3. Step 3: Cross multiply
    28,039,709.20x = 42,063,500.40 × 8,868,467.20
  4. Step 4: Simplify right side
    28,039,709.20x = 373,038,773,614,586.81
  5. Step 5: Solve for x
    x = 373,038,773,614,586.81/28,039,709.20
  6. Step 6: Final answer
    x = 13,303,945.88

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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.