Home / 18,120,927.69-25,006,883.76-9,972,165.69

Finding the Fourth Proportional to 18,120,927.69, 25,006,883.76 and 9,972,165.69

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Solution

The fourth proportional to 18,120,927.69, 25,006,883.76 and 9,972,165.69 is: 13,761,590.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120,927.69 : 25,006,883.76 = 9,972,165.69 : x
  2. Step 2: Convert to fraction form
    18,120,927.69/25,006,883.76 = 9,972,165.69/x
  3. Step 3: Cross multiply
    18,120,927.69x = 25,006,883.76 × 9,972,165.69
  4. Step 4: Simplify right side
    18,120,927.69x = 249,372,788,245,290.19
  5. Step 5: Solve for x
    x = 249,372,788,245,290.19/18,120,927.69
  6. Step 6: Final answer
    x = 13,761,590.60

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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.