Home / 130,836,622.92-180,555,733.77-72,101,395.44

Finding the Fourth Proportional to 130,836,622.92, 180,555,733.77 and 72,101,395.44

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Solution

The fourth proportional to 130,836,622.92, 180,555,733.77 and 72,101,395.44 is: 99,500,583.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,836,622.92 : 180,555,733.77 = 72,101,395.44 : x
  2. Step 2: Convert to fraction form
    130,836,622.92/180,555,733.77 = 72,101,395.44/x
  3. Step 3: Cross multiply
    130,836,622.92x = 180,555,733.77 × 72,101,395.44
  4. Step 4: Simplify right side
    130,836,622.92x = 13,018,320,359,510,132
  5. Step 5: Solve for x
    x = 13,018,320,359,510,132/130,836,622.92
  6. Step 6: Final answer
    x = 99,500,583.77

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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.