Home / 77,661,880.64-107,175,672.98-42,381,963.67

Finding the Fourth Proportional to 77,661,880.64, 107,175,672.98 and 42,381,963.67

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Solution

The fourth proportional to 77,661,880.64, 107,175,672.98 and 42,381,963.67 is: 58,488,352.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,661,880.64 : 107,175,672.98 = 42,381,963.67 : x
  2. Step 2: Convert to fraction form
    77,661,880.64/107,175,672.98 = 42,381,963.67/x
  3. Step 3: Cross multiply
    77,661,880.64x = 107,175,672.98 × 42,381,963.67
  4. Step 4: Simplify right side
    77,661,880.64x = 4,542,315,478,010,282
  5. Step 5: Solve for x
    x = 4,542,315,478,010,282/77,661,880.64
  6. Step 6: Final answer
    x = 58,488,352.85

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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.