Home / 128,250,734.40-192,496,370.40-67,709,908.80

Finding the Fourth Proportional to 128,250,734.40, 192,496,370.40 and 67,709,908.80

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Solution

The fourth proportional to 128,250,734.40, 192,496,370.40 and 67,709,908.80 is: 101,628,359.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,250,734.40 : 192,496,370.40 = 67,709,908.80 : x
  2. Step 2: Convert to fraction form
    128,250,734.40/192,496,370.40 = 67,709,908.80/x
  3. Step 3: Cross multiply
    128,250,734.40x = 192,496,370.40 × 67,709,908.80
  4. Step 4: Simplify right side
    128,250,734.40x = 13,033,911,684,115,020
  5. Step 5: Solve for x
    x = 13,033,911,684,115,020/128,250,734.40
  6. Step 6: Final answer
    x = 101,628,359.05

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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.