Home / 426,752,859.60-640,607,586.30-330,136,885.80

Finding the Fourth Proportional to 426,752,859.60, 640,607,586.30 and 330,136,885.80

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Solution

The fourth proportional to 426,752,859.60, 640,607,586.30 and 330,136,885.80 is: 495,575,340.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,752,859.60 : 640,607,586.30 = 330,136,885.80 : x
  2. Step 2: Convert to fraction form
    426,752,859.60/640,607,586.30 = 330,136,885.80/x
  3. Step 3: Cross multiply
    426,752,859.60x = 640,607,586.30 × 330,136,885.80
  4. Step 4: Simplify right side
    426,752,859.60x = 211,488,193,560,936,736
  5. Step 5: Solve for x
    x = 211,488,193,560,936,736/426,752,859.60
  6. Step 6: Final answer
    x = 495,575,340.16

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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.