Home / 15,640,647,549.06-21,584,869,096.41-9,702,113,238.66

Finding the Fourth Proportional to 15,640,647,549.06, 21,584,869,096.41 and 9,702,113,238.66

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Solution

The fourth proportional to 15,640,647,549.06, 21,584,869,096.41 and 9,702,113,238.66 is: 13,389,397,309.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640,647,549.06 : 21,584,869,096.41 = 9,702,113,238.66 : x
  2. Step 2: Convert to fraction form
    15,640,647,549.06/21,584,869,096.41 = 9,702,113,238.66/x
  3. Step 3: Cross multiply
    15,640,647,549.06x = 21,584,869,096.41 × 9,702,113,238.66
  4. Step 4: Simplify right side
    15,640,647,549.06x = 209,418,844,215,022,583,808
  5. Step 5: Solve for x
    x = 209,418,844,215,022,583,808/15,640,647,549.06
  6. Step 6: Final answer
    x = 13,389,397,309.68

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Double scale
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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.