Home / 10,502,415.20-15,765,432.60-8,116,835.60

Finding the Fourth Proportional to 10,502,415.20, 15,765,432.60 and 8,116,835.60

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Solution

The fourth proportional to 10,502,415.20, 15,765,432.60 and 8,116,835.60 is: 12,184,380.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502,415.20 : 15,765,432.60 = 8,116,835.60 : x
  2. Step 2: Convert to fraction form
    10,502,415.20/15,765,432.60 = 8,116,835.60/x
  3. Step 3: Cross multiply
    10,502,415.20x = 15,765,432.60 × 8,116,835.60
  4. Step 4: Simplify right side
    10,502,415.20x = 127,965,424,577,080.55
  5. Step 5: Solve for x
    x = 127,965,424,577,080.55/10,502,415.20
  6. Step 6: Final answer
    x = 12,184,380.65

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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.