Home / 12,199,202.81-18,298,130.67-8,919,917.76

Finding the Fourth Proportional to 12,199,202.81, 18,298,130.67 and 8,919,917.76

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Solution

The fourth proportional to 12,199,202.81, 18,298,130.67 and 8,919,917.76 is: 13,379,384.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,199,202.81 : 18,298,130.67 = 8,919,917.76 : x
  2. Step 2: Convert to fraction form
    12,199,202.81/18,298,130.67 = 8,919,917.76/x
  3. Step 3: Cross multiply
    12,199,202.81x = 18,298,130.67 × 8,919,917.76
  4. Step 4: Simplify right side
    12,199,202.81x = 163,217,820,776,023.88
  5. Step 5: Solve for x
    x = 163,217,820,776,023.88/12,199,202.81
  6. Step 6: Final answer
    x = 13,379,384.15

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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.