Home / 31,106,203,876.64-42,921,943,589.60-18,892,553,241.44

Finding the Fourth Proportional to 31,106,203,876.64, 42,921,943,589.60 and 18,892,553,241.44

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Solution

The fourth proportional to 31,106,203,876.64, 42,921,943,589.60 and 18,892,553,241.44 is: 26,068,918,846.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,106,203,876.64 : 42,921,943,589.60 = 18,892,553,241.44 : x
  2. Step 2: Convert to fraction form
    31,106,203,876.64/42,921,943,589.60 = 18,892,553,241.44/x
  3. Step 3: Cross multiply
    31,106,203,876.64x = 42,921,943,589.60 × 18,892,553,241.44
  4. Step 4: Simplify right side
    31,106,203,876.64x = 810,905,104,492,602,195,968
  5. Step 5: Solve for x
    x = 810,905,104,492,602,195,968/31,106,203,876.64
  6. Step 6: Final answer
    x = 26,068,918,846.81

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.