Home / 28,256,945.60-42,385,418.40-6,981,809.60

Finding the Fourth Proportional to 28,256,945.60, 42,385,418.40 and 6,981,809.60

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Solution

The fourth proportional to 28,256,945.60, 42,385,418.40 and 6,981,809.60 is: 10,472,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256,945.60 : 42,385,418.40 = 6,981,809.60 : x
  2. Step 2: Convert to fraction form
    28,256,945.60/42,385,418.40 = 6,981,809.60/x
  3. Step 3: Cross multiply
    28,256,945.60x = 42,385,418.40 × 6,981,809.60
  4. Step 4: Simplify right side
    28,256,945.60x = 295,926,921,085,136.62
  5. Step 5: Solve for x
    x = 295,926,921,085,136.62/28,256,945.60
  6. Step 6: Final answer
    x = 10,472,714.40

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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.