Home / 89,692,364.40-134,538,546.60-78,354,956.40

Finding the Fourth Proportional to 89,692,364.40, 134,538,546.60 and 78,354,956.40

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Solution

The fourth proportional to 89,692,364.40, 134,538,546.60 and 78,354,956.40 is: 117,532,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,692,364.40 : 134,538,546.60 = 78,354,956.40 : x
  2. Step 2: Convert to fraction form
    89,692,364.40/134,538,546.60 = 78,354,956.40/x
  3. Step 3: Cross multiply
    89,692,364.40x = 134,538,546.60 × 78,354,956.40
  4. Step 4: Simplify right side
    89,692,364.40x = 10,541,761,952,962,368
  5. Step 5: Solve for x
    x = 10,541,761,952,962,368/89,692,364.40
  6. Step 6: Final answer
    x = 117,532,434.60

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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.