Home / 20,181,439.60-30,272,159.40-8,208,012.40

Finding the Fourth Proportional to 20,181,439.60, 30,272,159.40 and 8,208,012.40

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Solution

The fourth proportional to 20,181,439.60, 30,272,159.40 and 8,208,012.40 is: 12,312,018.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181,439.60 : 30,272,159.40 = 8,208,012.40 : x
  2. Step 2: Convert to fraction form
    20,181,439.60/30,272,159.40 = 8,208,012.40/x
  3. Step 3: Cross multiply
    20,181,439.60x = 30,272,159.40 × 8,208,012.40
  4. Step 4: Simplify right side
    20,181,439.60x = 248,474,259,729,976.56
  5. Step 5: Solve for x
    x = 248,474,259,729,976.56/20,181,439.60
  6. Step 6: Final answer
    x = 12,312,018.60

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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.