Home / 78,037,415.60-117,056,123.40-49,190,010.80

Finding the Fourth Proportional to 78,037,415.60, 117,056,123.40 and 49,190,010.80

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Solution

The fourth proportional to 78,037,415.60, 117,056,123.40 and 49,190,010.80 is: 73,785,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,037,415.60 : 117,056,123.40 = 49,190,010.80 : x
  2. Step 2: Convert to fraction form
    78,037,415.60/117,056,123.40 = 49,190,010.80/x
  3. Step 3: Cross multiply
    78,037,415.60x = 117,056,123.40 × 49,190,010.80
  4. Step 4: Simplify right side
    78,037,415.60x = 5,757,991,974,252,133
  5. Step 5: Solve for x
    x = 5,757,991,974,252,133/78,037,415.60
  6. Step 6: Final answer
    x = 73,785,016.20

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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.