Home / 30,319,999.20-45,479,998.80-11,146,788.90

Finding the Fourth Proportional to 30,319,999.20, 45,479,998.80 and 11,146,788.90

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Solution

The fourth proportional to 30,319,999.20, 45,479,998.80 and 11,146,788.90 is: 16,720,183.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,319,999.20 : 45,479,998.80 = 11,146,788.90 : x
  2. Step 2: Convert to fraction form
    30,319,999.20/45,479,998.80 = 11,146,788.90/x
  3. Step 3: Cross multiply
    30,319,999.20x = 45,479,998.80 × 11,146,788.90
  4. Step 4: Simplify right side
    30,319,999.20x = 506,955,945,795,853.31
  5. Step 5: Solve for x
    x = 506,955,945,795,853.31/30,319,999.20
  6. Step 6: Final answer
    x = 16,720,183.35

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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.