Home / 18,640,369.19-25,710,458.49-12,442,290.91

Finding the Fourth Proportional to 18,640,369.19, 25,710,458.49 and 12,442,290.91

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Solution

The fourth proportional to 18,640,369.19, 25,710,458.49 and 12,442,290.91 is: 17,161,516.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640,369.19 : 25,710,458.49 = 12,442,290.91 : x
  2. Step 2: Convert to fraction form
    18,640,369.19/25,710,458.49 = 12,442,290.91/x
  3. Step 3: Cross multiply
    18,640,369.19x = 25,710,458.49 × 12,442,290.91
  4. Step 4: Simplify right side
    18,640,369.19x = 319,897,003,897,783.19
  5. Step 5: Solve for x
    x = 319,897,003,897,783.19/18,640,369.19
  6. Step 6: Final answer
    x = 17,161,516.52

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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.