Home / 28,247,999.40-42,377,528.70-12,073,919.40

Finding the Fourth Proportional to 28,247,999.40, 42,377,528.70 and 12,073,919.40

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Solution

The fourth proportional to 28,247,999.40, 42,377,528.70 and 12,073,919.40 is: 18,113,242.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247,999.40 : 42,377,528.70 = 12,073,919.40 : x
  2. Step 2: Convert to fraction form
    28,247,999.40/42,377,528.70 = 12,073,919.40/x
  3. Step 3: Cross multiply
    28,247,999.40x = 42,377,528.70 × 12,073,919.40
  4. Step 4: Simplify right side
    28,247,999.40x = 511,662,865,894,986.81
  5. Step 5: Solve for x
    x = 511,662,865,894,986.81/28,247,999.40
  6. Step 6: Final answer
    x = 18,113,242.59

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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.