Home / 148,626,935.40-205,103,958.12-81,647,014.80

Finding the Fourth Proportional to 148,626,935.40, 205,103,958.12 and 81,647,014.80

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Solution

The fourth proportional to 148,626,935.40, 205,103,958.12 and 81,647,014.80 is: 112,672,214.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,626,935.40 : 205,103,958.12 = 81,647,014.80 : x
  2. Step 2: Convert to fraction form
    148,626,935.40/205,103,958.12 = 81,647,014.80/x
  3. Step 3: Cross multiply
    148,626,935.40x = 205,103,958.12 × 81,647,014.80
  4. Step 4: Simplify right side
    148,626,935.40x = 16,746,125,904,162,220
  5. Step 5: Solve for x
    x = 16,746,125,904,162,220/148,626,935.40
  6. Step 6: Final answer
    x = 112,672,214.22

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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.