Home / 103,170,886.85-142,375,819.07-56,760,144.32

Finding the Fourth Proportional to 103,170,886.85, 142,375,819.07 and 56,760,144.32

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Solution

The fourth proportional to 103,170,886.85, 142,375,819.07 and 56,760,144.32 is: 78,328,996.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,170,886.85 : 142,375,819.07 = 56,760,144.32 : x
  2. Step 2: Convert to fraction form
    103,170,886.85/142,375,819.07 = 56,760,144.32/x
  3. Step 3: Cross multiply
    103,170,886.85x = 142,375,819.07 × 56,760,144.32
  4. Step 4: Simplify right side
    103,170,886.85x = 8,081,272,038,091,408
  5. Step 5: Solve for x
    x = 8,081,272,038,091,408/103,170,886.85
  6. Step 6: Final answer
    x = 78,328,996.53

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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.