Home / 487,074,447.18-672,212,835.56-296,349,004.79

Finding the Fourth Proportional to 487,074,447.18, 672,212,835.56 and 296,349,004.79

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Solution

The fourth proportional to 487,074,447.18, 672,212,835.56 and 296,349,004.79 is: 408,992,107.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,074,447.18 : 672,212,835.56 = 296,349,004.79 : x
  2. Step 2: Convert to fraction form
    487,074,447.18/672,212,835.56 = 296,349,004.79/x
  3. Step 3: Cross multiply
    487,074,447.18x = 672,212,835.56 × 296,349,004.79
  4. Step 4: Simplify right side
    487,074,447.18x = 199,209,604,820,427,104
  5. Step 5: Solve for x
    x = 199,209,604,820,427,104/487,074,447.18
  6. Step 6: Final answer
    x = 408,992,107.83

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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.