Home / 28,155,981.38-38,855,254.32-15,278,925.38

Finding the Fourth Proportional to 28,155,981.38, 38,855,254.32 and 15,278,925.38

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Solution

The fourth proportional to 28,155,981.38, 38,855,254.32 and 15,278,925.38 is: 21,084,917.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,155,981.38 : 38,855,254.32 = 15,278,925.38 : x
  2. Step 2: Convert to fraction form
    28,155,981.38/38,855,254.32 = 15,278,925.38/x
  3. Step 3: Cross multiply
    28,155,981.38x = 38,855,254.32 × 15,278,925.38
  4. Step 4: Simplify right side
    28,155,981.38x = 593,666,531,181,926.38
  5. Step 5: Solve for x
    x = 593,666,531,181,926.38/28,155,981.38
  6. Step 6: Final answer
    x = 21,084,917.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.