Home / 102,722,400.45-141,765,880.71-56,321,622.45

Finding the Fourth Proportional to 102,722,400.45, 141,765,880.71 and 56,321,622.45

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Solution

The fourth proportional to 102,722,400.45, 141,765,880.71 and 56,321,622.45 is: 77,728,756.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,722,400.45 : 141,765,880.71 = 56,321,622.45 : x
  2. Step 2: Convert to fraction form
    102,722,400.45/141,765,880.71 = 56,321,622.45/x
  3. Step 3: Cross multiply
    102,722,400.45x = 141,765,880.71 × 56,321,622.45
  4. Step 4: Simplify right side
    102,722,400.45x = 7,984,484,409,640,359
  5. Step 5: Solve for x
    x = 7,984,484,409,640,359/102,722,400.45
  6. Step 6: Final answer
    x = 77,728,756.09

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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.