Home / 90,991,985.58-125,538,280.11-51,806,035.89

Finding the Fourth Proportional to 90,991,985.58, 125,538,280.11 and 51,806,035.89

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Solution

The fourth proportional to 90,991,985.58, 125,538,280.11 and 51,806,035.89 is: 71,474,873.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,991,985.58 : 125,538,280.11 = 51,806,035.89 : x
  2. Step 2: Convert to fraction form
    90,991,985.58/125,538,280.11 = 51,806,035.89/x
  3. Step 3: Cross multiply
    90,991,985.58x = 125,538,280.11 × 51,806,035.89
  4. Step 4: Simplify right side
    90,991,985.58x = 6,503,640,644,947,533
  5. Step 5: Solve for x
    x = 6,503,640,644,947,533/90,991,985.58
  6. Step 6: Final answer
    x = 71,474,873.35

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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.