Home / 30,168,487.80-45,252,731.70-11,012,992.20

Finding the Fourth Proportional to 30,168,487.80, 45,252,731.70 and 11,012,992.20

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Solution

The fourth proportional to 30,168,487.80, 45,252,731.70 and 11,012,992.20 is: 16,519,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168,487.80 : 45,252,731.70 = 11,012,992.20 : x
  2. Step 2: Convert to fraction form
    30,168,487.80/45,252,731.70 = 11,012,992.20/x
  3. Step 3: Cross multiply
    30,168,487.80x = 45,252,731.70 × 11,012,992.20
  4. Step 4: Simplify right side
    30,168,487.80x = 498,367,981,240,792.75
  5. Step 5: Solve for x
    x = 498,367,981,240,792.75/30,168,487.80
  6. Step 6: Final answer
    x = 16,519,488.30

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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.