Home / 67,156,128.47-100,722,924.18-18,638,911.28

Finding the Fourth Proportional to 67,156,128.47, 100,722,924.18 and 18,638,911.28

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Solution

The fourth proportional to 67,156,128.47, 100,722,924.18 and 18,638,911.28 is: 27,955,239.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,156,128.47 : 100,722,924.18 = 18,638,911.28 : x
  2. Step 2: Convert to fraction form
    67,156,128.47/100,722,924.18 = 18,638,911.28/x
  3. Step 3: Cross multiply
    67,156,128.47x = 100,722,924.18 × 18,638,911.28
  4. Step 4: Simplify right side
    67,156,128.47x = 1,877,365,647,149,572
  5. Step 5: Solve for x
    x = 1,877,365,647,149,572/67,156,128.47
  6. Step 6: Final answer
    x = 27,955,239.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.