Home / 20,278,874,167.81-27,981,146,088.69-11,702,171,904.40

Finding the Fourth Proportional to 20,278,874,167.81, 27,981,146,088.69 and 11,702,171,904.40

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Solution

The fourth proportional to 20,278,874,167.81, 27,981,146,088.69 and 11,702,171,904.40 is: 16,146,861,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,278,874,167.81 : 27,981,146,088.69 = 11,702,171,904.40 : x
  2. Step 2: Convert to fraction form
    20,278,874,167.81/27,981,146,088.69 = 11,702,171,904.40/x
  3. Step 3: Cross multiply
    20,278,874,167.81x = 27,981,146,088.69 × 11,702,171,904.40
  4. Step 4: Simplify right side
    20,278,874,167.81x = 327,440,181,611,980,062,720
  5. Step 5: Solve for x
    x = 327,440,181,611,980,062,720/20,278,874,167.81
  6. Step 6: Final answer
    x = 16,146,861,946.20

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1.5x scale

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.