Home / 319,115,440.80-478,688,907.60-166,060,432.80

Finding the Fourth Proportional to 319,115,440.80, 478,688,907.60 and 166,060,432.80

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Solution

The fourth proportional to 319,115,440.80, 478,688,907.60 and 166,060,432.80 is: 249,098,843.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,115,440.80 : 478,688,907.60 = 166,060,432.80 : x
  2. Step 2: Convert to fraction form
    319,115,440.80/478,688,907.60 = 166,060,432.80/x
  3. Step 3: Cross multiply
    319,115,440.80x = 478,688,907.60 × 166,060,432.80
  4. Step 4: Simplify right side
    319,115,440.80x = 79,491,287,172,615,216
  5. Step 5: Solve for x
    x = 79,491,287,172,615,216/319,115,440.80
  6. Step 6: Final answer
    x = 249,098,843.27

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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.