Home / 18,472,748,856.79-25,494,293,455.08-11,239,309,858.70

Finding the Fourth Proportional to 18,472,748,856.79, 25,494,293,455.08 and 11,239,309,858.70

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Solution

The fourth proportional to 18,472,748,856.79, 25,494,293,455.08 and 11,239,309,858.70 is: 15,511,403,635.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,472,748,856.79 : 25,494,293,455.08 = 11,239,309,858.70 : x
  2. Step 2: Convert to fraction form
    18,472,748,856.79/25,494,293,455.08 = 11,239,309,858.70/x
  3. Step 3: Cross multiply
    18,472,748,856.79x = 25,494,293,455.08 × 11,239,309,858.70
  4. Step 4: Simplify right side
    18,472,748,856.79x = 286,538,263,770,144,079,872
  5. Step 5: Solve for x
    x = 286,538,263,770,144,079,872/18,472,748,856.79
  6. Step 6: Final answer
    x = 15,511,403,635.25

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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.