Home / 18,750,005.32-28,068,972.68-11,341,632.93

Finding the Fourth Proportional to 18,750,005.32, 28,068,972.68 and 11,341,632.93

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Solution

The fourth proportional to 18,750,005.32, 28,068,972.68 and 11,341,632.93 is: 16,978,554.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750,005.32 : 28,068,972.68 = 11,341,632.93 : x
  2. Step 2: Convert to fraction form
    18,750,005.32/28,068,972.68 = 11,341,632.93/x
  3. Step 3: Cross multiply
    18,750,005.32x = 28,068,972.68 × 11,341,632.93
  4. Step 4: Simplify right side
    18,750,005.32x = 318,347,984,887,112.44
  5. Step 5: Solve for x
    x = 318,347,984,887,112.44/18,750,005.32
  6. Step 6: Final answer
    x = 16,978,554.38

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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.