Home / 272,613,137.20-408,919,705.80-163,774,020.40

Finding the Fourth Proportional to 272,613,137.20, 408,919,705.80 and 163,774,020.40

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Solution

The fourth proportional to 272,613,137.20, 408,919,705.80 and 163,774,020.40 is: 245,661,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,613,137.20 : 408,919,705.80 = 163,774,020.40 : x
  2. Step 2: Convert to fraction form
    272,613,137.20/408,919,705.80 = 163,774,020.40/x
  3. Step 3: Cross multiply
    272,613,137.20x = 408,919,705.80 × 163,774,020.40
  4. Step 4: Simplify right side
    272,613,137.20x = 66,970,424,239,651,200
  5. Step 5: Solve for x
    x = 66,970,424,239,651,200/272,613,137.20
  6. Step 6: Final answer
    x = 245,661,030.60

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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.