Home / 272,615,887.20-408,923,830.80-163,776,770.40

Finding the Fourth Proportional to 272,615,887.20, 408,923,830.80 and 163,776,770.40

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Solution

The fourth proportional to 272,615,887.20, 408,923,830.80 and 163,776,770.40 is: 245,665,155.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,615,887.20 : 408,923,830.80 = 163,776,770.40 : x
  2. Step 2: Convert to fraction form
    272,615,887.20/408,923,830.80 = 163,776,770.40/x
  3. Step 3: Cross multiply
    272,615,887.20x = 408,923,830.80 × 163,776,770.40
  4. Step 4: Simplify right side
    272,615,887.20x = 66,972,224,348,020,056
  5. Step 5: Solve for x
    x = 66,972,224,348,020,056/272,615,887.20
  6. Step 6: Final answer
    x = 245,665,155.60

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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.