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Finding the Fourth Proportional to 299,550,688.80, 449,326,033.20 and 265,538,464.80

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Solution

The fourth proportional to 299,550,688.80, 449,326,033.20 and 265,538,464.80 is: 398,307,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,550,688.80 : 449,326,033.20 = 265,538,464.80 : x
  2. Step 2: Convert to fraction form
    299,550,688.80/449,326,033.20 = 265,538,464.80/x
  3. Step 3: Cross multiply
    299,550,688.80x = 449,326,033.20 × 265,538,464.80
  4. Step 4: Simplify right side
    299,550,688.80x = 119,313,345,050,601,840
  5. Step 5: Solve for x
    x = 119,313,345,050,601,840/299,550,688.80
  6. Step 6: Final answer
    x = 398,307,697.20

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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.