Home / 56,791,913,338.50-78,375,148,042.05-31,416,947,181.78

Finding the Fourth Proportional to 56,791,913,338.50, 78,375,148,042.05 and 31,416,947,181.78

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Solution

The fourth proportional to 56,791,913,338.50, 78,375,148,042.05 and 31,416,947,181.78 is: 43,356,663,680.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,791,913,338.50 : 78,375,148,042.05 = 31,416,947,181.78 : x
  2. Step 2: Convert to fraction form
    56,791,913,338.50/78,375,148,042.05 = 31,416,947,181.78/x
  3. Step 3: Cross multiply
    56,791,913,338.50x = 78,375,148,042.05 × 31,416,947,181.78
  4. Step 4: Simplify right side
    56,791,913,338.50x = 2,462,307,886,401,273,200,640
  5. Step 5: Solve for x
    x = 2,462,307,886,401,273,200,640/56,791,913,338.50
  6. Step 6: Final answer
    x = 43,356,663,680.71

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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.