Home / 13,309,963.60-19,964,945.40-7,570,400.80

Finding the Fourth Proportional to 13,309,963.60, 19,964,945.40 and 7,570,400.80

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Solution

The fourth proportional to 13,309,963.60, 19,964,945.40 and 7,570,400.80 is: 11,355,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,963.60 : 19,964,945.40 = 7,570,400.80 : x
  2. Step 2: Convert to fraction form
    13,309,963.60/19,964,945.40 = 7,570,400.80/x
  3. Step 3: Cross multiply
    13,309,963.60x = 19,964,945.40 × 7,570,400.80
  4. Step 4: Simplify right side
    13,309,963.60x = 151,142,638,628,116.31
  5. Step 5: Solve for x
    x = 151,142,638,628,116.31/13,309,963.60
  6. Step 6: Final answer
    x = 11,355,601.20

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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.