Home / 12,185,385,654.78-18,279,330,867.64-4,217,540,853.48

Finding the Fourth Proportional to 12,185,385,654.78, 18,279,330,867.64 and 4,217,540,853.48

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Solution

The fourth proportional to 12,185,385,654.78, 18,279,330,867.64 and 4,217,540,853.48 is: 6,326,744,749.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,185,385,654.78 : 18,279,330,867.64 = 4,217,540,853.48 : x
  2. Step 2: Convert to fraction form
    12,185,385,654.78/18,279,330,867.64 = 4,217,540,853.48/x
  3. Step 3: Cross multiply
    12,185,385,654.78x = 18,279,330,867.64 × 4,217,540,853.48
  4. Step 4: Simplify right side
    12,185,385,654.78x = 77,093,824,708,549,705,728
  5. Step 5: Solve for x
    x = 77,093,824,708,549,705,728/12,185,385,654.78
  6. Step 6: Final answer
    x = 6,326,744,749.22

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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.