Home / 15,403,036.14-21,256,195.03-8,434,154.47

Finding the Fourth Proportional to 15,403,036.14, 21,256,195.03 and 8,434,154.47

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Solution

The fourth proportional to 15,403,036.14, 21,256,195.03 and 8,434,154.47 is: 11,639,135.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,403,036.14 : 21,256,195.03 = 8,434,154.47 : x
  2. Step 2: Convert to fraction form
    15,403,036.14/21,256,195.03 = 8,434,154.47/x
  3. Step 3: Cross multiply
    15,403,036.14x = 21,256,195.03 × 8,434,154.47
  4. Step 4: Simplify right side
    15,403,036.14x = 179,278,032,179,014.53
  5. Step 5: Solve for x
    x = 179,278,032,179,014.53/15,403,036.14
  6. Step 6: Final answer
    x = 11,639,135.98

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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.