Home / 102,504,905,729.79-153,701,307,053.60-81,392,970,992.13

Finding the Fourth Proportional to 102,504,905,729.79, 153,701,307,053.60 and 81,392,970,992.13

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Solution

The fourth proportional to 102,504,905,729.79, 153,701,307,053.60 and 81,392,970,992.13 is: 122,044,949,335.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,504,905,729.79 : 153,701,307,053.60 = 81,392,970,992.13 : x
  2. Step 2: Convert to fraction form
    102,504,905,729.79/153,701,307,053.60 = 81,392,970,992.13/x
  3. Step 3: Cross multiply
    102,504,905,729.79x = 153,701,307,053.60 × 81,392,970,992.13
  4. Step 4: Simplify right side
    102,504,905,729.79x = 12,510,206,026,466,132,492,288
  5. Step 5: Solve for x
    x = 12,510,206,026,466,132,492,288/102,504,905,729.79
  6. Step 6: Final answer
    x = 122,044,949,335.83

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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.