Home / 12,907,169,108.40-19,360,753,662.60-7,664,078,490.60

Finding the Fourth Proportional to 12,907,169,108.40, 19,360,753,662.60 and 7,664,078,490.60

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Solution

The fourth proportional to 12,907,169,108.40, 19,360,753,662.60 and 7,664,078,490.60 is: 11,496,117,735.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,907,169,108.40 : 19,360,753,662.60 = 7,664,078,490.60 : x
  2. Step 2: Convert to fraction form
    12,907,169,108.40/19,360,753,662.60 = 7,664,078,490.60/x
  3. Step 3: Cross multiply
    12,907,169,108.40x = 19,360,753,662.60 × 7,664,078,490.60
  4. Step 4: Simplify right side
    12,907,169,108.40x = 148,382,335,707,337,818,112
  5. Step 5: Solve for x
    x = 148,382,335,707,337,818,112/12,907,169,108.40
  6. Step 6: Final answer
    x = 11,496,117,735.90

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.