Home / 28,836,021.60-43,254,032.40-18,086,479.20

Finding the Fourth Proportional to 28,836,021.60, 43,254,032.40 and 18,086,479.20

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Solution

The fourth proportional to 28,836,021.60, 43,254,032.40 and 18,086,479.20 is: 27,129,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836,021.60 : 43,254,032.40 = 18,086,479.20 : x
  2. Step 2: Convert to fraction form
    28,836,021.60/43,254,032.40 = 18,086,479.20/x
  3. Step 3: Cross multiply
    28,836,021.60x = 43,254,032.40 × 18,086,479.20
  4. Step 4: Simplify right side
    28,836,021.60x = 782,313,157,318,726
  5. Step 5: Solve for x
    x = 782,313,157,318,726/28,836,021.60
  6. Step 6: Final answer
    x = 27,129,718.80

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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.