Home / 81,941,402.90-122,912,104.35-56,113,370.30

Finding the Fourth Proportional to 81,941,402.90, 122,912,104.35 and 56,113,370.30

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Solution

The fourth proportional to 81,941,402.90, 122,912,104.35 and 56,113,370.30 is: 84,170,055.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,941,402.90 : 122,912,104.35 = 56,113,370.30 : x
  2. Step 2: Convert to fraction form
    81,941,402.90/122,912,104.35 = 56,113,370.30/x
  3. Step 3: Cross multiply
    81,941,402.90x = 122,912,104.35 × 56,113,370.30
  4. Step 4: Simplify right side
    81,941,402.90x = 6,897,012,425,743,790
  5. Step 5: Solve for x
    x = 6,897,012,425,743,790/81,941,402.90
  6. Step 6: Final answer
    x = 84,170,055.45

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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.