Home / 211,344,139.80-317,016,209.70-190,180,978.20

Finding the Fourth Proportional to 211,344,139.80, 317,016,209.70 and 190,180,978.20

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Solution

The fourth proportional to 211,344,139.80, 317,016,209.70 and 190,180,978.20 is: 285,271,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,344,139.80 : 317,016,209.70 = 190,180,978.20 : x
  2. Step 2: Convert to fraction form
    211,344,139.80/317,016,209.70 = 190,180,978.20/x
  3. Step 3: Cross multiply
    211,344,139.80x = 317,016,209.70 × 190,180,978.20
  4. Step 4: Simplify right side
    211,344,139.80x = 60,290,452,866,002,320
  5. Step 5: Solve for x
    x = 60,290,452,866,002,320/211,344,139.80
  6. Step 6: Final answer
    x = 285,271,467.30

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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.