Home / 56,763,739,399.59-78,334,467,926.90-31,390,917,902.55

Finding the Fourth Proportional to 56,763,739,399.59, 78,334,467,926.90 and 31,390,917,902.55

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Solution

The fourth proportional to 56,763,739,399.59, 78,334,467,926.90 and 31,390,917,902.55 is: 43,319,747,388.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,763,739,399.59 : 78,334,467,926.90 = 31,390,917,902.55 : x
  2. Step 2: Convert to fraction form
    56,763,739,399.59/78,334,467,926.90 = 31,390,917,902.55/x
  3. Step 3: Cross multiply
    56,763,739,399.59x = 78,334,467,926.90 × 31,390,917,902.55
  4. Step 4: Simplify right side
    56,763,739,399.59x = 2,458,990,851,633,097,211,904
  5. Step 5: Solve for x
    x = 2,458,990,851,633,097,211,904/56,763,739,399.59
  6. Step 6: Final answer
    x = 43,319,747,388.79

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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.