Home / 402,786,087.80-603,612,261.30-298,340,216.60

Finding the Fourth Proportional to 402,786,087.80, 603,612,261.30 and 298,340,216.60

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Solution

The fourth proportional to 402,786,087.80, 603,612,261.30 and 298,340,216.60 is: 447,090,448.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,786,087.80 : 603,612,261.30 = 298,340,216.60 : x
  2. Step 2: Convert to fraction form
    402,786,087.80/603,612,261.30 = 298,340,216.60/x
  3. Step 3: Cross multiply
    402,786,087.80x = 603,612,261.30 × 298,340,216.60
  4. Step 4: Simplify right side
    402,786,087.80x = 180,081,812,778,657,792
  5. Step 5: Solve for x
    x = 180,081,812,778,657,792/402,786,087.80
  6. Step 6: Final answer
    x = 447,090,448.83

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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.