Home / 20,421,125,247.20-28,181,152,895.37-11,033,751,423.20

Finding the Fourth Proportional to 20,421,125,247.20, 28,181,152,895.37 and 11,033,751,423.20

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Solution

The fourth proportional to 20,421,125,247.20, 28,181,152,895.37 and 11,033,751,423.20 is: 15,226,576,993.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421,125,247.20 : 28,181,152,895.37 = 11,033,751,423.20 : x
  2. Step 2: Convert to fraction form
    20,421,125,247.20/28,181,152,895.37 = 11,033,751,423.20/x
  3. Step 3: Cross multiply
    20,421,125,247.20x = 28,181,152,895.37 × 11,033,751,423.20
  4. Step 4: Simplify right side
    20,421,125,247.20x = 310,943,835,866,693,304,320
  5. Step 5: Solve for x
    x = 310,943,835,866,693,304,320/20,421,125,247.20
  6. Step 6: Final answer
    x = 15,226,576,993.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.