Home / 140,157,154.80-210,235,732.20-82,714,287.60

Finding the Fourth Proportional to 140,157,154.80, 210,235,732.20 and 82,714,287.60

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Solution

The fourth proportional to 140,157,154.80, 210,235,732.20 and 82,714,287.60 is: 124,071,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,157,154.80 : 210,235,732.20 = 82,714,287.60 : x
  2. Step 2: Convert to fraction form
    140,157,154.80/210,235,732.20 = 82,714,287.60/x
  3. Step 3: Cross multiply
    140,157,154.80x = 210,235,732.20 × 82,714,287.60
  4. Step 4: Simplify right side
    140,157,154.80x = 17,389,498,816,987,378
  5. Step 5: Solve for x
    x = 17,389,498,816,987,378/140,157,154.80
  6. Step 6: Final answer
    x = 124,071,431.40

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1.5x scale

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.