Home / 402,417,643.20-603,626,464.80-247,449,447.60

Finding the Fourth Proportional to 402,417,643.20, 603,626,464.80 and 247,449,447.60

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Solution

The fourth proportional to 402,417,643.20, 603,626,464.80 and 247,449,447.60 is: 371,174,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,417,643.20 : 603,626,464.80 = 247,449,447.60 : x
  2. Step 2: Convert to fraction form
    402,417,643.20/603,626,464.80 = 247,449,447.60/x
  3. Step 3: Cross multiply
    402,417,643.20x = 603,626,464.80 × 247,449,447.60
  4. Step 4: Simplify right side
    402,417,643.20x = 149,367,035,271,500,832
  5. Step 5: Solve for x
    x = 149,367,035,271,500,832/402,417,643.20
  6. Step 6: Final answer
    x = 371,174,171.40

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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.