Home / 12,781,748.60-19,163,291.70-5,204,814.20

Finding the Fourth Proportional to 12,781,748.60, 19,163,291.70 and 5,204,814.20

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Solution

The fourth proportional to 12,781,748.60, 19,163,291.70 and 5,204,814.20 is: 7,803,421.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,748.60 : 19,163,291.70 = 5,204,814.20 : x
  2. Step 2: Convert to fraction form
    12,781,748.60/19,163,291.70 = 5,204,814.20/x
  3. Step 3: Cross multiply
    12,781,748.60x = 19,163,291.70 × 5,204,814.20
  4. Step 4: Simplify right side
    12,781,748.60x = 99,741,372,758,902.14
  5. Step 5: Solve for x
    x = 99,741,372,758,902.14/12,781,748.60
  6. Step 6: Final answer
    x = 7,803,421.57

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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.