Home / 178,689,628.60-268,034,442.90-76,463,999.80

Finding the Fourth Proportional to 178,689,628.60, 268,034,442.90 and 76,463,999.80

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Solution

The fourth proportional to 178,689,628.60, 268,034,442.90 and 76,463,999.80 is: 114,695,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,689,628.60 : 268,034,442.90 = 76,463,999.80 : x
  2. Step 2: Convert to fraction form
    178,689,628.60/268,034,442.90 = 76,463,999.80/x
  3. Step 3: Cross multiply
    178,689,628.60x = 268,034,442.90 × 76,463,999.80
  4. Step 4: Simplify right side
    178,689,628.60x = 20,494,985,588,298,712
  5. Step 5: Solve for x
    x = 20,494,985,588,298,712/178,689,628.60
  6. Step 6: Final answer
    x = 114,695,999.70

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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.