Home / 12,129,199,078.92-18,194,169,263.36-4,161,255,544.36

Finding the Fourth Proportional to 12,129,199,078.92, 18,194,169,263.36 and 4,161,255,544.36

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Solution

The fourth proportional to 12,129,199,078.92, 18,194,169,263.36 and 4,161,255,544.36 is: 6,242,010,476.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,199,078.92 : 18,194,169,263.36 = 4,161,255,544.36 : x
  2. Step 2: Convert to fraction form
    12,129,199,078.92/18,194,169,263.36 = 4,161,255,544.36/x
  3. Step 3: Cross multiply
    12,129,199,078.92x = 18,194,169,263.36 × 4,161,255,544.36
  4. Step 4: Simplify right side
    12,129,199,078.92x = 75,710,587,722,181,099,520
  5. Step 5: Solve for x
    x = 75,710,587,722,181,099,520/12,129,199,078.92
  6. Step 6: Final answer
    x = 6,242,010,476.50

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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.