Home / 389,736,989.98-584,483,103.18-127,361,712.42

Finding the Fourth Proportional to 389,736,989.98, 584,483,103.18 and 127,361,712.42

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Solution

The fourth proportional to 389,736,989.98, 584,483,103.18 and 127,361,712.42 is: 191,002,575.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,736,989.98 : 584,483,103.18 = 127,361,712.42 : x
  2. Step 2: Convert to fraction form
    389,736,989.98/584,483,103.18 = 127,361,712.42/x
  3. Step 3: Cross multiply
    389,736,989.98x = 584,483,103.18 × 127,361,712.42
  4. Step 4: Simplify right side
    389,736,989.98x = 74,440,768,901,560,336
  5. Step 5: Solve for x
    x = 74,440,768,901,560,336/389,736,989.98
  6. Step 6: Final answer
    x = 191,002,575.62

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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.