Home / 148,781,826.84-205,321,376.34-81,803,614.92

Finding the Fourth Proportional to 148,781,826.84, 205,321,376.34 and 81,803,614.92

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Solution

The fourth proportional to 148,781,826.84, 205,321,376.34 and 81,803,614.92 is: 112,890,338.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,781,826.84 : 205,321,376.34 = 81,803,614.92 : x
  2. Step 2: Convert to fraction form
    148,781,826.84/205,321,376.34 = 81,803,614.92/x
  3. Step 3: Cross multiply
    148,781,826.84x = 205,321,376.34 × 81,803,614.92
  4. Step 4: Simplify right side
    148,781,826.84x = 16,796,030,804,961,760
  5. Step 5: Solve for x
    x = 16,796,030,804,961,760/148,781,826.84
  6. Step 6: Final answer
    x = 112,890,338.57

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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.