Home / 121,376,390.40-182,064,585.60-120,620,563.20

Finding the Fourth Proportional to 121,376,390.40, 182,064,585.60 and 120,620,563.20

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Solution

The fourth proportional to 121,376,390.40, 182,064,585.60 and 120,620,563.20 is: 180,930,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,376,390.40 : 182,064,585.60 = 120,620,563.20 : x
  2. Step 2: Convert to fraction form
    121,376,390.40/182,064,585.60 = 120,620,563.20/x
  3. Step 3: Cross multiply
    121,376,390.40x = 182,064,585.60 × 120,620,563.20
  4. Step 4: Simplify right side
    121,376,390.40x = 21,960,732,853,846,608
  5. Step 5: Solve for x
    x = 21,960,732,853,846,608/121,376,390.40
  6. Step 6: Final answer
    x = 180,930,844.80

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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.