Home / 78,539,692.77-117,770,123.95-45,760,854.76

Finding the Fourth Proportional to 78,539,692.77, 117,770,123.95 and 45,760,854.76

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Solution

The fourth proportional to 78,539,692.77, 117,770,123.95 and 45,760,854.76 is: 68,618,317.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,539,692.77 : 117,770,123.95 = 45,760,854.76 : x
  2. Step 2: Convert to fraction form
    78,539,692.77/117,770,123.95 = 45,760,854.76/x
  3. Step 3: Cross multiply
    78,539,692.77x = 117,770,123.95 × 45,760,854.76
  4. Step 4: Simplify right side
    78,539,692.77x = 5,389,261,536,325,493
  5. Step 5: Solve for x
    x = 5,389,261,536,325,493/78,539,692.77
  6. Step 6: Final answer
    x = 68,618,317.01

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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.