Home / 206,148,277.76-309,369,946.86-74,990,299.70

Finding the Fourth Proportional to 206,148,277.76, 309,369,946.86 and 74,990,299.70

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Solution

The fourth proportional to 206,148,277.76, 309,369,946.86 and 74,990,299.70 is: 112,539,116.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,148,277.76 : 309,369,946.86 = 74,990,299.70 : x
  2. Step 2: Convert to fraction form
    206,148,277.76/309,369,946.86 = 74,990,299.70/x
  3. Step 3: Cross multiply
    206,148,277.76x = 309,369,946.86 × 74,990,299.70
  4. Step 4: Simplify right side
    206,148,277.76x = 23,199,745,033,977,900
  5. Step 5: Solve for x
    x = 23,199,745,033,977,900/206,148,277.76
  6. Step 6: Final answer
    x = 112,539,116.44

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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.