Home / 12,963,606,777.30-17,889,795,505.64-7,023,159,279.30

Finding the Fourth Proportional to 12,963,606,777.30, 17,889,795,505.64 and 7,023,159,279.30

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Solution

The fourth proportional to 12,963,606,777.30, 17,889,795,505.64 and 7,023,159,279.30 is: 9,691,969,639.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963,606,777.30 : 17,889,795,505.64 = 7,023,159,279.30 : x
  2. Step 2: Convert to fraction form
    12,963,606,777.30/17,889,795,505.64 = 7,023,159,279.30/x
  3. Step 3: Cross multiply
    12,963,606,777.30x = 17,889,795,505.64 × 7,023,159,279.30
  4. Step 4: Simplify right side
    12,963,606,777.30x = 125,642,883,310,215,004,160
  5. Step 5: Solve for x
    x = 125,642,883,310,215,004,160/12,963,606,777.30
  6. Step 6: Final answer
    x = 9,691,969,639.98

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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.