Home / 29,231,975,893.28-40,340,156,588.04-15,865,971,778.40

Finding the Fourth Proportional to 29,231,975,893.28, 40,340,156,588.04 and 15,865,971,778.40

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Solution

The fourth proportional to 29,231,975,893.28, 40,340,156,588.04 and 15,865,971,778.40 is: 21,895,057,258.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,231,975,893.28 : 40,340,156,588.04 = 15,865,971,778.40 : x
  2. Step 2: Convert to fraction form
    29,231,975,893.28/40,340,156,588.04 = 15,865,971,778.40/x
  3. Step 3: Cross multiply
    29,231,975,893.28x = 40,340,156,588.04 × 15,865,971,778.40
  4. Step 4: Simplify right side
    29,231,975,893.28x = 640,035,785,962,079,518,720
  5. Step 5: Solve for x
    x = 640,035,785,962,079,518,720/29,231,975,893.28
  6. Step 6: Final answer
    x = 21,895,057,258.49

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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.