Home / 72,866,640.63-109,283,838.30-21,039,993.57

Finding the Fourth Proportional to 72,866,640.63, 109,283,838.30 and 21,039,993.57

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Solution

The fourth proportional to 72,866,640.63, 109,283,838.30 and 21,039,993.57 is: 31,555,335.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,866,640.63 : 109,283,838.30 = 21,039,993.57 : x
  2. Step 2: Convert to fraction form
    72,866,640.63/109,283,838.30 = 21,039,993.57/x
  3. Step 3: Cross multiply
    72,866,640.63x = 109,283,838.30 × 21,039,993.57
  4. Step 4: Simplify right side
    72,866,640.63x = 2,299,331,255,136,919.50
  5. Step 5: Solve for x
    x = 2,299,331,255,136,919.50/72,866,640.63
  6. Step 6: Final answer
    x = 31,555,335.00

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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.