Home / 81,267,175,669.44-121,916,461,906.80-30,898,693,189.92

Finding the Fourth Proportional to 81,267,175,669.44, 121,916,461,906.80 and 30,898,693,189.92

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Solution

The fourth proportional to 81,267,175,669.44, 121,916,461,906.80 and 30,898,693,189.92 is: 46,354,008,493.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,267,175,669.44 : 121,916,461,906.80 = 30,898,693,189.92 : x
  2. Step 2: Convert to fraction form
    81,267,175,669.44/121,916,461,906.80 = 30,898,693,189.92/x
  3. Step 3: Cross multiply
    81,267,175,669.44x = 121,916,461,906.80 × 30,898,693,189.92
  4. Step 4: Simplify right side
    81,267,175,669.44x = 3,767,059,351,258,781,974,528
  5. Step 5: Solve for x
    x = 3,767,059,351,258,781,974,528/81,267,175,669.44
  6. Step 6: Final answer
    x = 46,354,008,493.93

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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.