Home / 120,807,220.74-166,709,272.20-73,842,928.70

Finding the Fourth Proportional to 120,807,220.74, 166,709,272.20 and 73,842,928.70

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Solution

The fourth proportional to 120,807,220.74, 166,709,272.20 and 73,842,928.70 is: 101,900,373.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,807,220.74 : 166,709,272.20 = 73,842,928.70 : x
  2. Step 2: Convert to fraction form
    120,807,220.74/166,709,272.20 = 73,842,928.70/x
  3. Step 3: Cross multiply
    120,807,220.74x = 166,709,272.20 × 73,842,928.70
  4. Step 4: Simplify right side
    120,807,220.74x = 12,310,300,899,893,912
  5. Step 5: Solve for x
    x = 12,310,300,899,893,912/120,807,220.74
  6. Step 6: Final answer
    x = 101,900,373.37

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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.