Home / 13,709,770.80-18,919,077.78-7,514,685.06

Finding the Fourth Proportional to 13,709,770.80, 18,919,077.78 and 7,514,685.06

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Solution

The fourth proportional to 13,709,770.80, 18,919,077.78 and 7,514,685.06 is: 10,370,042.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709,770.80 : 18,919,077.78 = 7,514,685.06 : x
  2. Step 2: Convert to fraction form
    13,709,770.80/18,919,077.78 = 7,514,685.06/x
  3. Step 3: Cross multiply
    13,709,770.80x = 18,919,077.78 × 7,514,685.06
  4. Step 4: Simplify right side
    13,709,770.80x = 142,170,911,142,343.97
  5. Step 5: Solve for x
    x = 142,170,911,142,343.97/13,709,770.80
  6. Step 6: Final answer
    x = 10,370,042.89

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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.