Home / 8,658,052,003.10-12,987,078,004.65-7,418,306,438.30

Finding the Fourth Proportional to 8,658,052,003.10, 12,987,078,004.65 and 7,418,306,438.30

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Solution

The fourth proportional to 8,658,052,003.10, 12,987,078,004.65 and 7,418,306,438.30 is: 11,127,459,657.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,658,052,003.10 : 12,987,078,004.65 = 7,418,306,438.30 : x
  2. Step 2: Convert to fraction form
    8,658,052,003.10/12,987,078,004.65 = 7,418,306,438.30/x
  3. Step 3: Cross multiply
    8,658,052,003.10x = 12,987,078,004.65 × 7,418,306,438.30
  4. Step 4: Simplify right side
    8,658,052,003.10x = 96,342,124,376,599,412,736
  5. Step 5: Solve for x
    x = 96,342,124,376,599,412,736/8,658,052,003.10
  6. Step 6: Final answer
    x = 11,127,459,657.45

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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.