Home / 81,492,394.40-122,196,601.20-30,348,087.20

Finding the Fourth Proportional to 81,492,394.40, 122,196,601.20 and 30,348,087.20

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Solution

The fourth proportional to 81,492,394.40, 122,196,601.20 and 30,348,087.20 is: 45,506,493.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,492,394.40 : 122,196,601.20 = 30,348,087.20 : x
  2. Step 2: Convert to fraction form
    81,492,394.40/122,196,601.20 = 30,348,087.20/x
  3. Step 3: Cross multiply
    81,492,394.40x = 122,196,601.20 × 30,348,087.20
  4. Step 4: Simplify right side
    81,492,394.40x = 3,708,433,108,761,224.50
  5. Step 5: Solve for x
    x = 3,708,433,108,761,224.50/81,492,394.40
  6. Step 6: Final answer
    x = 45,506,493.41

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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.