Home / 265,617,772.80-398,426,659.20-211,870,060.80

Finding the Fourth Proportional to 265,617,772.80, 398,426,659.20 and 211,870,060.80

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Solution

The fourth proportional to 265,617,772.80, 398,426,659.20 and 211,870,060.80 is: 317,805,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,617,772.80 : 398,426,659.20 = 211,870,060.80 : x
  2. Step 2: Convert to fraction form
    265,617,772.80/398,426,659.20 = 211,870,060.80/x
  3. Step 3: Cross multiply
    265,617,772.80x = 398,426,659.20 × 211,870,060.80
  4. Step 4: Simplify right side
    265,617,772.80x = 84,414,680,509,044,880
  5. Step 5: Solve for x
    x = 84,414,680,509,044,880/265,617,772.80
  6. Step 6: Final answer
    x = 317,805,091.20

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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.