Home / 403,477,387.80-605,216,081.70-265,727,880.60

Finding the Fourth Proportional to 403,477,387.80, 605,216,081.70 and 265,727,880.60

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Solution

The fourth proportional to 403,477,387.80, 605,216,081.70 and 265,727,880.60 is: 398,591,820.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,477,387.80 : 605,216,081.70 = 265,727,880.60 : x
  2. Step 2: Convert to fraction form
    403,477,387.80/605,216,081.70 = 265,727,880.60/x
  3. Step 3: Cross multiply
    403,477,387.80x = 605,216,081.70 × 265,727,880.60
  4. Step 4: Simplify right side
    403,477,387.80x = 160,822,786,695,177,440
  5. Step 5: Solve for x
    x = 160,822,786,695,177,440/403,477,387.80
  6. Step 6: Final answer
    x = 398,591,820.90

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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.