Home / 78,393,302.29-108,177,141.53-43,113,591.50

Finding the Fourth Proportional to 78,393,302.29, 108,177,141.53 and 43,113,591.50

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Solution

The fourth proportional to 78,393,302.29, 108,177,141.53 and 43,113,591.50 is: 59,493,667.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,393,302.29 : 108,177,141.53 = 43,113,591.50 : x
  2. Step 2: Convert to fraction form
    78,393,302.29/108,177,141.53 = 43,113,591.50/x
  3. Step 3: Cross multiply
    78,393,302.29x = 108,177,141.53 × 43,113,591.50
  4. Step 4: Simplify right side
    78,393,302.29x = 4,663,905,089,346,537
  5. Step 5: Solve for x
    x = 4,663,905,089,346,537/78,393,302.29
  6. Step 6: Final answer
    x = 59,493,667.87

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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.