Home / 147,260,859.15-203,220,599.45-81,179,905.71

Finding the Fourth Proportional to 147,260,859.15, 203,220,599.45 and 81,179,905.71

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Solution

The fourth proportional to 147,260,859.15, 203,220,599.45 and 81,179,905.71 is: 112,028,608.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,260,859.15 : 203,220,599.45 = 81,179,905.71 : x
  2. Step 2: Convert to fraction form
    147,260,859.15/203,220,599.45 = 81,179,905.71/x
  3. Step 3: Cross multiply
    147,260,859.15x = 203,220,599.45 × 81,179,905.71
  4. Step 4: Simplify right side
    147,260,859.15x = 16,497,429,101,274,776
  5. Step 5: Solve for x
    x = 16,497,429,101,274,776/147,260,859.15
  6. Step 6: Final answer
    x = 112,028,608.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.