Home / 13,338,164.88-18,406,427.38-7,536,821.76

Finding the Fourth Proportional to 13,338,164.88, 18,406,427.38 and 7,536,821.76

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Solution

The fourth proportional to 13,338,164.88, 18,406,427.38 and 7,536,821.76 is: 10,400,678.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338,164.88 : 18,406,427.38 = 7,536,821.76 : x
  2. Step 2: Convert to fraction form
    13,338,164.88/18,406,427.38 = 7,536,821.76/x
  3. Step 3: Cross multiply
    13,338,164.88x = 18,406,427.38 × 7,536,821.76
  4. Step 4: Simplify right side
    13,338,164.88x = 138,725,962,382,601.73
  5. Step 5: Solve for x
    x = 138,725,962,382,601.73/13,338,164.88
  6. Step 6: Final answer
    x = 10,400,678.33

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1.5x scale

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.