Home / 120,299,283.80-180,487,787.31-55,645,500.38

Finding the Fourth Proportional to 120,299,283.80, 180,487,787.31 and 55,645,500.38

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Solution

The fourth proportional to 120,299,283.80, 180,487,787.31 and 55,645,500.38 is: 83,486,226.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,299,283.80 : 180,487,787.31 = 55,645,500.38 : x
  2. Step 2: Convert to fraction form
    120,299,283.80/180,487,787.31 = 55,645,500.38/x
  3. Step 3: Cross multiply
    120,299,283.80x = 180,487,787.31 × 55,645,500.38
  4. Step 4: Simplify right side
    120,299,283.80x = 10,043,333,237,343,964
  5. Step 5: Solve for x
    x = 10,043,333,237,343,964/120,299,283.80
  6. Step 6: Final answer
    x = 83,486,226.35

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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.