Home / 206,148,284.36-309,369,956.78-74,990,306.32

Finding the Fourth Proportional to 206,148,284.36, 309,369,956.78 and 74,990,306.32

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Solution

The fourth proportional to 206,148,284.36, 309,369,956.78 and 74,990,306.32 is: 112,539,126.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,148,284.36 : 309,369,956.78 = 74,990,306.32 : x
  2. Step 2: Convert to fraction form
    206,148,284.36/309,369,956.78 = 74,990,306.32/x
  3. Step 3: Cross multiply
    206,148,284.36x = 309,369,956.78 × 74,990,306.32
  4. Step 4: Simplify right side
    206,148,284.36x = 23,199,747,824,551,412
  5. Step 5: Solve for x
    x = 23,199,747,824,551,412/206,148,284.36
  6. Step 6: Final answer
    x = 112,539,126.37

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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.