Home / 207,718,880.40-311,326,378.20-92,581,203.60

Finding the Fourth Proportional to 207,718,880.40, 311,326,378.20 and 92,581,203.60

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Solution

The fourth proportional to 207,718,880.40, 311,326,378.20 and 92,581,203.60 is: 138,759,513.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,718,880.40 : 311,326,378.20 = 92,581,203.60 : x
  2. Step 2: Convert to fraction form
    207,718,880.40/311,326,378.20 = 92,581,203.60/x
  3. Step 3: Cross multiply
    207,718,880.40x = 311,326,378.20 × 92,581,203.60
  4. Step 4: Simplify right side
    207,718,880.40x = 28,822,970,806,184,800
  5. Step 5: Solve for x
    x = 28,822,970,806,184,800/207,718,880.40
  6. Step 6: Final answer
    x = 138,759,513.58

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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.