Home / 389,778,778.78-584,476,848.59-192,814,620.91

Finding the Fourth Proportional to 389,778,778.78, 584,476,848.59 and 192,814,620.91

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Solution

The fourth proportional to 389,778,778.78, 584,476,848.59 and 192,814,620.91 is: 289,127,289.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,778,778.78 : 584,476,848.59 = 192,814,620.91 : x
  2. Step 2: Convert to fraction form
    389,778,778.78/584,476,848.59 = 192,814,620.91/x
  3. Step 3: Cross multiply
    389,778,778.78x = 584,476,848.59 × 192,814,620.91
  4. Step 4: Simplify right side
    389,778,778.78x = 112,695,681,989,127,056
  5. Step 5: Solve for x
    x = 112,695,681,989,127,056/389,778,778.78
  6. Step 6: Final answer
    x = 289,127,289.95

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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.