Home / 76,408,126.79-105,445,809.62-42,923,519.58

Finding the Fourth Proportional to 76,408,126.79, 105,445,809.62 and 42,923,519.58

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Solution

The fourth proportional to 76,408,126.79, 105,445,809.62 and 42,923,519.58 is: 59,235,914.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,408,126.79 : 105,445,809.62 = 42,923,519.58 : x
  2. Step 2: Convert to fraction form
    76,408,126.79/105,445,809.62 = 42,923,519.58/x
  3. Step 3: Cross multiply
    76,408,126.79x = 105,445,809.62 × 42,923,519.58
  4. Step 4: Simplify right side
    76,408,126.79x = 4,526,105,273,638,404
  5. Step 5: Solve for x
    x = 4,526,105,273,638,404/76,408,126.79
  6. Step 6: Final answer
    x = 59,235,914.61

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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.