Home / 262,326,006.20-393,489,009.30-80,572,892.60

Finding the Fourth Proportional to 262,326,006.20, 393,489,009.30 and 80,572,892.60

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Solution

The fourth proportional to 262,326,006.20, 393,489,009.30 and 80,572,892.60 is: 120,859,338.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,326,006.20 : 393,489,009.30 = 80,572,892.60 : x
  2. Step 2: Convert to fraction form
    262,326,006.20/393,489,009.30 = 80,572,892.60/x
  3. Step 3: Cross multiply
    262,326,006.20x = 393,489,009.30 × 80,572,892.60
  4. Step 4: Simplify right side
    262,326,006.20x = 31,704,547,685,609,300
  5. Step 5: Solve for x
    x = 31,704,547,685,609,300/262,326,006.20
  6. Step 6: Final answer
    x = 120,859,338.90

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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.