Home / 469,272,311.79-648,133,261.33-309,052,514.95

Finding the Fourth Proportional to 469,272,311.79, 648,133,261.33 and 309,052,514.95

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Solution

The fourth proportional to 469,272,311.79, 648,133,261.33 and 309,052,514.95 is: 426,846,437.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,272,311.79 : 648,133,261.33 = 309,052,514.95 : x
  2. Step 2: Convert to fraction form
    469,272,311.79/648,133,261.33 = 309,052,514.95/x
  3. Step 3: Cross multiply
    469,272,311.79x = 648,133,261.33 × 309,052,514.95
  4. Step 4: Simplify right side
    469,272,311.79x = 200,307,214,434,970,144
  5. Step 5: Solve for x
    x = 200,307,214,434,970,144/469,272,311.79
  6. Step 6: Final answer
    x = 426,846,437.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.