Home / 13,151,009,685.52-18,149,746,026.03-8,001,422,742.54

Finding the Fourth Proportional to 13,151,009,685.52, 18,149,746,026.03 and 8,001,422,742.54

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Solution

The fourth proportional to 13,151,009,685.52, 18,149,746,026.03 and 8,001,422,742.54 is: 11,042,786,378.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151,009,685.52 : 18,149,746,026.03 = 8,001,422,742.54 : x
  2. Step 2: Convert to fraction form
    13,151,009,685.52/18,149,746,026.03 = 8,001,422,742.54/x
  3. Step 3: Cross multiply
    13,151,009,685.52x = 18,149,746,026.03 × 8,001,422,742.54
  4. Step 4: Simplify right side
    13,151,009,685.52x = 145,223,790,624,001,425,408
  5. Step 5: Solve for x
    x = 145,223,790,624,001,425,408/13,151,009,685.52
  6. Step 6: Final answer
    x = 11,042,786,378.90

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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.