Home / 28,003,800.20-42,005,700.30-18,933,873.80

Finding the Fourth Proportional to 28,003,800.20, 42,005,700.30 and 18,933,873.80

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Solution

The fourth proportional to 28,003,800.20, 42,005,700.30 and 18,933,873.80 is: 28,400,810.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003,800.20 : 42,005,700.30 = 18,933,873.80 : x
  2. Step 2: Convert to fraction form
    28,003,800.20/42,005,700.30 = 18,933,873.80/x
  3. Step 3: Cross multiply
    28,003,800.20x = 42,005,700.30 × 18,933,873.80
  4. Step 4: Simplify right side
    28,003,800.20x = 795,330,628,360,822.12
  5. Step 5: Solve for x
    x = 795,330,628,360,822.12/28,003,800.20
  6. Step 6: Final answer
    x = 28,400,810.70

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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.