Home / 402,408,903.80-603,613,355.70-398,582,528.60

Finding the Fourth Proportional to 402,408,903.80, 603,613,355.70 and 398,582,528.60

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Solution

The fourth proportional to 402,408,903.80, 603,613,355.70 and 398,582,528.60 is: 597,873,792.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,408,903.80 : 603,613,355.70 = 398,582,528.60 : x
  2. Step 2: Convert to fraction form
    402,408,903.80/603,613,355.70 = 398,582,528.60/x
  3. Step 3: Cross multiply
    402,408,903.80x = 603,613,355.70 × 398,582,528.60
  4. Step 4: Simplify right side
    402,408,903.80x = 240,589,737,611,637,248
  5. Step 5: Solve for x
    x = 240,589,737,611,637,248/402,408,903.80
  6. Step 6: Final answer
    x = 597,873,792.90

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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.