Home / 6,929,640,018.80-10,394,460,028.20-5,381,705,913.20

Finding the Fourth Proportional to 6,929,640,018.80, 10,394,460,028.20 and 5,381,705,913.20

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Solution

The fourth proportional to 6,929,640,018.80, 10,394,460,028.20 and 5,381,705,913.20 is: 8,072,558,869.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,929,640,018.80 : 10,394,460,028.20 = 5,381,705,913.20 : x
  2. Step 2: Convert to fraction form
    6,929,640,018.80/10,394,460,028.20 = 5,381,705,913.20/x
  3. Step 3: Cross multiply
    6,929,640,018.80x = 10,394,460,028.20 × 5,381,705,913.20
  4. Step 4: Simplify right side
    6,929,640,018.80x = 55,939,926,998,284,984,320
  5. Step 5: Solve for x
    x = 55,939,926,998,284,984,320/6,929,640,018.80
  6. Step 6: Final answer
    x = 8,072,558,869.80

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Double scale
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Similar ratio
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1.5x scale

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.