Home / 208,635,636.60-312,939,458.10-55,278,401.40

Finding the Fourth Proportional to 208,635,636.60, 312,939,458.10 and 55,278,401.40

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Solution

The fourth proportional to 208,635,636.60, 312,939,458.10 and 55,278,401.40 is: 82,913,893.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,635,636.60 : 312,939,458.10 = 55,278,401.40 : x
  2. Step 2: Convert to fraction form
    208,635,636.60/312,939,458.10 = 55,278,401.40/x
  3. Step 3: Cross multiply
    208,635,636.60x = 312,939,458.10 × 55,278,401.40
  4. Step 4: Simplify right side
    208,635,636.60x = 17,298,792,978,750,282
  5. Step 5: Solve for x
    x = 17,298,792,978,750,282/208,635,636.60
  6. Step 6: Final answer
    x = 82,913,893.62

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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.