Home / 13,309,971.60-19,964,957.40-7,570,408.80

Finding the Fourth Proportional to 13,309,971.60, 19,964,957.40 and 7,570,408.80

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Solution

The fourth proportional to 13,309,971.60, 19,964,957.40 and 7,570,408.80 is: 11,355,613.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,971.60 : 19,964,957.40 = 7,570,408.80 : x
  2. Step 2: Convert to fraction form
    13,309,971.60/19,964,957.40 = 7,570,408.80/x
  3. Step 3: Cross multiply
    13,309,971.60x = 19,964,957.40 × 7,570,408.80
  4. Step 4: Simplify right side
    13,309,971.60x = 151,142,889,192,585.09
  5. Step 5: Solve for x
    x = 151,142,889,192,585.09/13,309,971.60
  6. Step 6: Final answer
    x = 11,355,613.20

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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.