Home / 318,730,477.49-439,836,446.82-177,594,405.80

Finding the Fourth Proportional to 318,730,477.49, 439,836,446.82 and 177,594,405.80

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Solution

The fourth proportional to 318,730,477.49, 439,836,446.82 and 177,594,405.80 is: 245,073,809.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,730,477.49 : 439,836,446.82 = 177,594,405.80 : x
  2. Step 2: Convert to fraction form
    318,730,477.49/439,836,446.82 = 177,594,405.80/x
  3. Step 3: Cross multiply
    318,730,477.49x = 439,836,446.82 × 177,594,405.80
  4. Step 4: Simplify right side
    318,730,477.49x = 78,112,492,422,181,200
  5. Step 5: Solve for x
    x = 78,112,492,422,181,200/318,730,477.49
  6. Step 6: Final answer
    x = 245,073,809.81

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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.