Home / 140,919,120.80-211,378,681.20-80,452,944.80

Finding the Fourth Proportional to 140,919,120.80, 211,378,681.20 and 80,452,944.80

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Solution

The fourth proportional to 140,919,120.80, 211,378,681.20 and 80,452,944.80 is: 120,679,417.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,919,120.80 : 211,378,681.20 = 80,452,944.80 : x
  2. Step 2: Convert to fraction form
    140,919,120.80/211,378,681.20 = 80,452,944.80/x
  3. Step 3: Cross multiply
    140,919,120.80x = 211,378,681.20 × 80,452,944.80
  4. Step 4: Simplify right side
    140,919,120.80x = 17,006,037,370,480,396
  5. Step 5: Solve for x
    x = 17,006,037,370,480,396/140,919,120.80
  6. Step 6: Final answer
    x = 120,679,417.20

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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.