Home / 18,713,890.40-28,080,166.80-10,633,071.20

Finding the Fourth Proportional to 18,713,890.40, 28,080,166.80 and 10,633,071.20

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Solution

The fourth proportional to 18,713,890.40, 28,080,166.80 and 10,633,071.20 is: 15,954,908.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713,890.40 : 28,080,166.80 = 10,633,071.20 : x
  2. Step 2: Convert to fraction form
    18,713,890.40/28,080,166.80 = 10,633,071.20/x
  3. Step 3: Cross multiply
    18,713,890.40x = 28,080,166.80 × 10,633,071.20
  4. Step 4: Simplify right side
    18,713,890.40x = 298,578,412,892,276.12
  5. Step 5: Solve for x
    x = 298,578,412,892,276.12/18,713,890.40
  6. Step 6: Final answer
    x = 15,954,908.71

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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.