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Finding the Fourth Proportional to 177,143,898.80, 265,715,848.20 and 163,539,009.20

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Solution

The fourth proportional to 177,143,898.80, 265,715,848.20 and 163,539,009.20 is: 245,308,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,143,898.80 : 265,715,848.20 = 163,539,009.20 : x
  2. Step 2: Convert to fraction form
    177,143,898.80/265,715,848.20 = 163,539,009.20/x
  3. Step 3: Cross multiply
    177,143,898.80x = 265,715,848.20 × 163,539,009.20
  4. Step 4: Simplify right side
    177,143,898.80x = 43,454,906,543,365,600
  5. Step 5: Solve for x
    x = 43,454,906,543,365,600/177,143,898.80
  6. Step 6: Final answer
    x = 245,308,513.80

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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.