Home / 76,919,876.94-115,395,211.89-28,398,025.74

Finding the Fourth Proportional to 76,919,876.94, 115,395,211.89 and 28,398,025.74

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Solution

The fourth proportional to 76,919,876.94, 115,395,211.89 and 28,398,025.74 is: 42,602,722.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,919,876.94 : 115,395,211.89 = 28,398,025.74 : x
  2. Step 2: Convert to fraction form
    76,919,876.94/115,395,211.89 = 28,398,025.74/x
  3. Step 3: Cross multiply
    76,919,876.94x = 115,395,211.89 × 28,398,025.74
  4. Step 4: Simplify right side
    76,919,876.94x = 3,276,996,197,524,974
  5. Step 5: Solve for x
    x = 3,276,996,197,524,974/76,919,876.94
  6. Step 6: Final answer
    x = 42,602,722.83

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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.