Home / 10,354,909.12-15,531,313.92-2,780,890.72

Finding the Fourth Proportional to 10,354,909.12, 15,531,313.92 and 2,780,890.72

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Solution

The fourth proportional to 10,354,909.12, 15,531,313.92 and 2,780,890.72 is: 4,171,054.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354,909.12 : 15,531,313.92 = 2,780,890.72 : x
  2. Step 2: Convert to fraction form
    10,354,909.12/15,531,313.92 = 2,780,890.72/x
  3. Step 3: Cross multiply
    10,354,909.12x = 15,531,313.92 × 2,780,890.72
  4. Step 4: Simplify right side
    10,354,909.12x = 43,190,886,749,534.83
  5. Step 5: Solve for x
    x = 43,190,886,749,534.83/10,354,909.12
  6. Step 6: Final answer
    x = 4,171,054.16

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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.