Home / 85,202,830.20-127,729,595.70-51,137,729.40

Finding the Fourth Proportional to 85,202,830.20, 127,729,595.70 and 51,137,729.40

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Solution

The fourth proportional to 85,202,830.20, 127,729,595.70 and 51,137,729.40 is: 76,661,790.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,202,830.20 : 127,729,595.70 = 51,137,729.40 : x
  2. Step 2: Convert to fraction form
    85,202,830.20/127,729,595.70 = 51,137,729.40/x
  3. Step 3: Cross multiply
    85,202,830.20x = 127,729,595.70 × 51,137,729.40
  4. Step 4: Simplify right side
    85,202,830.20x = 6,531,801,501,278,004
  5. Step 5: Solve for x
    x = 6,531,801,501,278,004/85,202,830.20
  6. Step 6: Final answer
    x = 76,661,790.29

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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.