Home / 12,457,152,023.10-18,685,728,034.65-11,906,153,994.30

Finding the Fourth Proportional to 12,457,152,023.10, 18,685,728,034.65 and 11,906,153,994.30

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Solution

The fourth proportional to 12,457,152,023.10, 18,685,728,034.65 and 11,906,153,994.30 is: 17,859,230,991.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,152,023.10 : 18,685,728,034.65 = 11,906,153,994.30 : x
  2. Step 2: Convert to fraction form
    12,457,152,023.10/18,685,728,034.65 = 11,906,153,994.30/x
  3. Step 3: Cross multiply
    12,457,152,023.10x = 18,685,728,034.65 × 11,906,153,994.30
  4. Step 4: Simplify right side
    12,457,152,023.10x = 222,475,155,476,151,599,104
  5. Step 5: Solve for x
    x = 222,475,155,476,151,599,104/12,457,152,023.10
  6. Step 6: Final answer
    x = 17,859,230,991.45

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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.