Home / 131,371,230.80-197,056,846.20-128,011,998.80

Finding the Fourth Proportional to 131,371,230.80, 197,056,846.20 and 128,011,998.80

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Solution

The fourth proportional to 131,371,230.80, 197,056,846.20 and 128,011,998.80 is: 192,017,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,371,230.80 : 197,056,846.20 = 128,011,998.80 : x
  2. Step 2: Convert to fraction form
    131,371,230.80/197,056,846.20 = 128,011,998.80/x
  3. Step 3: Cross multiply
    131,371,230.80x = 197,056,846.20 × 128,011,998.80
  4. Step 4: Simplify right side
    131,371,230.80x = 25,225,640,759,286,184
  5. Step 5: Solve for x
    x = 25,225,640,759,286,184/131,371,230.80
  6. Step 6: Final answer
    x = 192,017,998.20

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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.