Home / 120,299,298.45-180,487,809.38-55,645,515.06

Finding the Fourth Proportional to 120,299,298.45, 180,487,809.38 and 55,645,515.06

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Solution

The fourth proportional to 120,299,298.45, 180,487,809.38 and 55,645,515.06 is: 83,486,248.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,299,298.45 : 180,487,809.38 = 55,645,515.06 : x
  2. Step 2: Convert to fraction form
    120,299,298.45/180,487,809.38 = 55,645,515.06/x
  3. Step 3: Cross multiply
    120,299,298.45x = 180,487,809.38 × 55,645,515.06
  4. Step 4: Simplify right side
    120,299,298.45x = 10,043,337,115,001,200
  5. Step 5: Solve for x
    x = 10,043,337,115,001,200/120,299,298.45
  6. Step 6: Final answer
    x = 83,486,248.42

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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.