Home / 28,256,821.60-42,385,232.40-6,981,685.60

Finding the Fourth Proportional to 28,256,821.60, 42,385,232.40 and 6,981,685.60

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Solution

The fourth proportional to 28,256,821.60, 42,385,232.40 and 6,981,685.60 is: 10,472,528.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256,821.60 : 42,385,232.40 = 6,981,685.60 : x
  2. Step 2: Convert to fraction form
    28,256,821.60/42,385,232.40 = 6,981,685.60/x
  3. Step 3: Cross multiply
    28,256,821.60x = 42,385,232.40 × 6,981,685.60
  4. Step 4: Simplify right side
    28,256,821.60x = 295,920,366,699,733.44
  5. Step 5: Solve for x
    x = 295,920,366,699,733.44/28,256,821.60
  6. Step 6: Final answer
    x = 10,472,528.40

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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.