Home / 77,670,717.60-107,225,889.48-56,739,246.78

Finding the Fourth Proportional to 77,670,717.60, 107,225,889.48 and 56,739,246.78

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Solution

The fourth proportional to 77,670,717.60, 107,225,889.48 and 56,739,246.78 is: 78,329,599.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,670,717.60 : 107,225,889.48 = 56,739,246.78 : x
  2. Step 2: Convert to fraction form
    77,670,717.60/107,225,889.48 = 56,739,246.78/x
  3. Step 3: Cross multiply
    77,670,717.60x = 107,225,889.48 × 56,739,246.78
  4. Step 4: Simplify right side
    77,670,717.60x = 6,083,916,204,410,726
  5. Step 5: Solve for x
    x = 6,083,916,204,410,726/77,670,717.60
  6. Step 6: Final answer
    x = 78,329,599.52

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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.