Home / 18,723,036.15-28,087,275.83-7,940,316.15

Finding the Fourth Proportional to 18,723,036.15, 28,087,275.83 and 7,940,316.15

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Solution

The fourth proportional to 18,723,036.15, 28,087,275.83 and 7,940,316.15 is: 11,911,628.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,036.15 : 28,087,275.83 = 7,940,316.15 : x
  2. Step 2: Convert to fraction form
    18,723,036.15/28,087,275.83 = 7,940,316.15/x
  3. Step 3: Cross multiply
    18,723,036.15x = 28,087,275.83 × 7,940,316.15
  4. Step 4: Simplify right side
    18,723,036.15x = 223,021,849,842,752.09
  5. Step 5: Solve for x
    x = 223,021,849,842,752.09/18,723,036.15
  6. Step 6: Final answer
    x = 11,911,628.44

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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.