Home / 13,209,969.60-19,814,954.40-9,178,891.20

Finding the Fourth Proportional to 13,209,969.60, 19,814,954.40 and 9,178,891.20

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Solution

The fourth proportional to 13,209,969.60, 19,814,954.40 and 9,178,891.20 is: 13,768,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209,969.60 : 19,814,954.40 = 9,178,891.20 : x
  2. Step 2: Convert to fraction form
    13,209,969.60/19,814,954.40 = 9,178,891.20/x
  3. Step 3: Cross multiply
    13,209,969.60x = 19,814,954.40 × 9,178,891.20
  4. Step 4: Simplify right side
    13,209,969.60x = 181,879,310,570,561.25
  5. Step 5: Solve for x
    x = 181,879,310,570,561.25/13,209,969.60
  6. Step 6: Final answer
    x = 13,768,336.80

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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.