Home / 15,382,910.55-21,231,256.40-9,883,160.50

Finding the Fourth Proportional to 15,382,910.55, 21,231,256.40 and 9,883,160.50

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Solution

The fourth proportional to 15,382,910.55, 21,231,256.40 and 9,883,160.50 is: 13,640,586.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,382,910.55 : 21,231,256.40 = 9,883,160.50 : x
  2. Step 2: Convert to fraction form
    15,382,910.55/21,231,256.40 = 9,883,160.50/x
  3. Step 3: Cross multiply
    15,382,910.55x = 21,231,256.40 × 9,883,160.50
  4. Step 4: Simplify right side
    15,382,910.55x = 209,831,914,617,852.19
  5. Step 5: Solve for x
    x = 209,831,914,617,852.19/15,382,910.55
  6. Step 6: Final answer
    x = 13,640,586.02

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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.