Home / 28,155,975.63-38,855,246.36-15,278,919.63

Finding the Fourth Proportional to 28,155,975.63, 38,855,246.36 and 15,278,919.63

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Solution

The fourth proportional to 28,155,975.63, 38,855,246.36 and 15,278,919.63 is: 21,084,909.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,155,975.63 : 38,855,246.36 = 15,278,919.63 : x
  2. Step 2: Convert to fraction form
    28,155,975.63/38,855,246.36 = 15,278,919.63/x
  3. Step 3: Cross multiply
    28,155,975.63x = 38,855,246.36 × 15,278,919.63
  4. Step 4: Simplify right side
    28,155,975.63x = 593,666,186,338,290.12
  5. Step 5: Solve for x
    x = 593,666,186,338,290.12/28,155,975.63
  6. Step 6: Final answer
    x = 21,084,909.08

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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.