Home / 18,749,459.20-28,124,188.80-8,649,091.84

Finding the Fourth Proportional to 18,749,459.20, 28,124,188.80 and 8,649,091.84

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Solution

The fourth proportional to 18,749,459.20, 28,124,188.80 and 8,649,091.84 is: 12,973,637.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,749,459.20 : 28,124,188.80 = 8,649,091.84 : x
  2. Step 2: Convert to fraction form
    18,749,459.20/28,124,188.80 = 8,649,091.84/x
  3. Step 3: Cross multiply
    18,749,459.20x = 28,124,188.80 × 8,649,091.84
  4. Step 4: Simplify right side
    18,749,459.20x = 243,248,691,856,699.41
  5. Step 5: Solve for x
    x = 243,248,691,856,699.41/18,749,459.20
  6. Step 6: Final answer
    x = 12,973,637.76

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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.