Home / 513,187,035.57-708,203,371.89-278,238,150.45

Finding the Fourth Proportional to 513,187,035.57, 708,203,371.89 and 278,238,150.45

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Solution

The fourth proportional to 513,187,035.57, 708,203,371.89 and 278,238,150.45 is: 383,971,500.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,187,035.57 : 708,203,371.89 = 278,238,150.45 : x
  2. Step 2: Convert to fraction form
    513,187,035.57/708,203,371.89 = 278,238,150.45/x
  3. Step 3: Cross multiply
    513,187,035.57x = 708,203,371.89 × 278,238,150.45
  4. Step 4: Simplify right side
    513,187,035.57x = 197,049,196,337,127,104
  5. Step 5: Solve for x
    x = 197,049,196,337,127,104/513,187,035.57
  6. Step 6: Final answer
    x = 383,971,500.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.