Home / 21,790,861.32-30,068,772.04-12,497,948.40

Finding the Fourth Proportional to 21,790,861.32, 30,068,772.04 and 12,497,948.40

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Solution

The fourth proportional to 21,790,861.32, 30,068,772.04 and 12,497,948.40 is: 17,245,668.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,790,861.32 : 30,068,772.04 = 12,497,948.40 : x
  2. Step 2: Convert to fraction form
    21,790,861.32/30,068,772.04 = 12,497,948.40/x
  3. Step 3: Cross multiply
    21,790,861.32x = 30,068,772.04 × 12,497,948.40
  4. Step 4: Simplify right side
    21,790,861.32x = 375,797,961,407,282.75
  5. Step 5: Solve for x
    x = 375,797,961,407,282.75/21,790,861.32
  6. Step 6: Final answer
    x = 17,245,668.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.