Home / 5,156,681.43-7,115,803.80-2,981,364.80

Finding the Fourth Proportional to 5,156,681.43, 7,115,803.80 and 2,981,364.80

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Solution

The fourth proportional to 5,156,681.43, 7,115,803.80 and 2,981,364.80 is: 4,114,042.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156,681.43 : 7,115,803.80 = 2,981,364.80 : x
  2. Step 2: Convert to fraction form
    5,156,681.43/7,115,803.80 = 2,981,364.80/x
  3. Step 3: Cross multiply
    5,156,681.43x = 7,115,803.80 × 2,981,364.80
  4. Step 4: Simplify right side
    5,156,681.43x = 21,214,806,971,435.57
  5. Step 5: Solve for x
    x = 21,214,806,971,435.57/5,156,681.43
  6. Step 6: Final answer
    x = 4,114,042.58

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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.