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Finding the Fourth Proportional to 13,207,978.60, 19,811,967.90 and 5,649,706.60

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Solution

The fourth proportional to 13,207,978.60, 19,811,967.90 and 5,649,706.60 is: 8,474,559.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207,978.60 : 19,811,967.90 = 5,649,706.60 : x
  2. Step 2: Convert to fraction form
    13,207,978.60/19,811,967.90 = 5,649,706.60/x
  3. Step 3: Cross multiply
    13,207,978.60x = 19,811,967.90 × 5,649,706.60
  4. Step 4: Simplify right side
    13,207,978.60x = 111,931,805,803,618.12
  5. Step 5: Solve for x
    x = 111,931,805,803,618.12/13,207,978.60
  6. Step 6: Final answer
    x = 8,474,559.90

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Why These Related Problems?

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