Home / 77,921,447.82-116,649,149.52-47,122,818

Finding the Fourth Proportional to 77,921,447.82, 116,649,149.52 and 47,122,818

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Solution

The fourth proportional to 77,921,447.82, 116,649,149.52 and 47,122,818 is: 70,543,307.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,921,447.82 : 116,649,149.52 = 47,122,818 : x
  2. Step 2: Convert to fraction form
    77,921,447.82/116,649,149.52 = 47,122,818/x
  3. Step 3: Cross multiply
    77,921,447.82x = 116,649,149.52 × 47,122,818
  4. Step 4: Simplify right side
    77,921,447.82x = 5,496,836,642,685,747
  5. Step 5: Solve for x
    x = 5,496,836,642,685,747/77,921,447.82
  6. Step 6: Final answer
    x = 70,543,307.35

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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.