Home / 442,825,801.20-664,616,615.40-197,559,874.80

Finding the Fourth Proportional to 442,825,801.20, 664,616,615.40 and 197,559,874.80

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Solution

The fourth proportional to 442,825,801.20, 664,616,615.40 and 197,559,874.80 is: 296,508,412.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,825,801.20 : 664,616,615.40 = 197,559,874.80 : x
  2. Step 2: Convert to fraction form
    442,825,801.20/664,616,615.40 = 197,559,874.80/x
  3. Step 3: Cross multiply
    442,825,801.20x = 664,616,615.40 × 197,559,874.80
  4. Step 4: Simplify right side
    442,825,801.20x = 131,301,575,328,423,760
  5. Step 5: Solve for x
    x = 131,301,575,328,423,760/442,825,801.20
  6. Step 6: Final answer
    x = 296,508,412.50

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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.