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Finding the Fourth Proportional to 330,097,978.20, 495,146,967.30 and 177,042,970.20

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Solution

The fourth proportional to 330,097,978.20, 495,146,967.30 and 177,042,970.20 is: 265,564,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,097,978.20 : 495,146,967.30 = 177,042,970.20 : x
  2. Step 2: Convert to fraction form
    330,097,978.20/495,146,967.30 = 177,042,970.20/x
  3. Step 3: Cross multiply
    330,097,978.20x = 495,146,967.30 × 177,042,970.20
  4. Step 4: Simplify right side
    330,097,978.20x = 87,662,289,776,314,272
  5. Step 5: Solve for x
    x = 87,662,289,776,314,272/330,097,978.20
  6. Step 6: Final answer
    x = 265,564,455.30

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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.