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Finding the Fourth Proportional to 299,549,891.80, 449,324,837.70 and 265,537,667.80

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Solution

The fourth proportional to 299,549,891.80, 449,324,837.70 and 265,537,667.80 is: 398,306,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,549,891.80 : 449,324,837.70 = 265,537,667.80 : x
  2. Step 2: Convert to fraction form
    299,549,891.80/449,324,837.70 = 265,537,667.80/x
  3. Step 3: Cross multiply
    299,549,891.80x = 449,324,837.70 × 265,537,667.80
  4. Step 4: Simplify right side
    299,549,891.80x = 119,312,669,487,471,520
  5. Step 5: Solve for x
    x = 119,312,669,487,471,520/299,549,891.80
  6. Step 6: Final answer
    x = 398,306,501.70

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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.