Home / 259,956,650.70-389,840,497.65-87,439,092.30

Finding the Fourth Proportional to 259,956,650.70, 389,840,497.65 and 87,439,092.30

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Solution

The fourth proportional to 259,956,650.70, 389,840,497.65 and 87,439,092.30 is: 131,126,859.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,956,650.70 : 389,840,497.65 = 87,439,092.30 : x
  2. Step 2: Convert to fraction form
    259,956,650.70/389,840,497.65 = 87,439,092.30/x
  3. Step 3: Cross multiply
    259,956,650.70x = 389,840,497.65 × 87,439,092.30
  4. Step 4: Simplify right side
    259,956,650.70x = 34,087,299,256,296,280
  5. Step 5: Solve for x
    x = 34,087,299,256,296,280/259,956,650.70
  6. Step 6: Final answer
    x = 131,126,859.67

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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.