Home / 13,824,128.40-20,736,192.60-8,781,133.20

Finding the Fourth Proportional to 13,824,128.40, 20,736,192.60 and 8,781,133.20

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Solution

The fourth proportional to 13,824,128.40, 20,736,192.60 and 8,781,133.20 is: 13,171,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824,128.40 : 20,736,192.60 = 8,781,133.20 : x
  2. Step 2: Convert to fraction form
    13,824,128.40/20,736,192.60 = 8,781,133.20/x
  3. Step 3: Cross multiply
    13,824,128.40x = 20,736,192.60 × 8,781,133.20
  4. Step 4: Simplify right side
    13,824,128.40x = 182,087,269,281,454.31
  5. Step 5: Solve for x
    x = 182,087,269,281,454.31/13,824,128.40
  6. Step 6: Final answer
    x = 13,171,699.80

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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.