Home / 78,494,106.32-108,319,954.94-43,211,624.66

Finding the Fourth Proportional to 78,494,106.32, 108,319,954.94 and 43,211,624.66

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Solution

The fourth proportional to 78,494,106.32, 108,319,954.94 and 43,211,624.66 is: 59,630,989.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,494,106.32 : 108,319,954.94 = 43,211,624.66 : x
  2. Step 2: Convert to fraction form
    78,494,106.32/108,319,954.94 = 43,211,624.66/x
  3. Step 3: Cross multiply
    78,494,106.32x = 108,319,954.94 × 43,211,624.66
  4. Step 4: Simplify right side
    78,494,106.32x = 4,680,681,236,055,392
  5. Step 5: Solve for x
    x = 4,680,681,236,055,392/78,494,106.32
  6. Step 6: Final answer
    x = 59,630,989.58

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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.