Home / 402,272,136.80-603,408,205.20-347,746,290.20

Finding the Fourth Proportional to 402,272,136.80, 603,408,205.20 and 347,746,290.20

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Solution

The fourth proportional to 402,272,136.80, 603,408,205.20 and 347,746,290.20 is: 521,619,435.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,272,136.80 : 603,408,205.20 = 347,746,290.20 : x
  2. Step 2: Convert to fraction form
    402,272,136.80/603,408,205.20 = 347,746,290.20/x
  3. Step 3: Cross multiply
    402,272,136.80x = 603,408,205.20 × 347,746,290.20
  4. Step 4: Simplify right side
    402,272,136.80x = 209,832,964,834,540,352
  5. Step 5: Solve for x
    x = 209,832,964,834,540,352/402,272,136.80
  6. Step 6: Final answer
    x = 521,619,435.30

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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.