Home / 65,996,730.45-90,752,448.06-57,279,722.67

Finding the Fourth Proportional to 65,996,730.45, 90,752,448.06 and 57,279,722.67

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Solution

The fourth proportional to 65,996,730.45, 90,752,448.06 and 57,279,722.67 is: 78,765,645.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,996,730.45 : 90,752,448.06 = 57,279,722.67 : x
  2. Step 2: Convert to fraction form
    65,996,730.45/90,752,448.06 = 57,279,722.67/x
  3. Step 3: Cross multiply
    65,996,730.45x = 90,752,448.06 × 57,279,722.67
  4. Step 4: Simplify right side
    65,996,730.45x = 5,198,275,056,500,380
  5. Step 5: Solve for x
    x = 5,198,275,056,500,380/65,996,730.45
  6. Step 6: Final answer
    x = 78,765,645.22

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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.