Home / 14,200,911.20-21,301,366.80-11,807,458.40

Finding the Fourth Proportional to 14,200,911.20, 21,301,366.80 and 11,807,458.40

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Solution

The fourth proportional to 14,200,911.20, 21,301,366.80 and 11,807,458.40 is: 17,711,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,200,911.20 : 21,301,366.80 = 11,807,458.40 : x
  2. Step 2: Convert to fraction form
    14,200,911.20/21,301,366.80 = 11,807,458.40/x
  3. Step 3: Cross multiply
    14,200,911.20x = 21,301,366.80 × 11,807,458.40
  4. Step 4: Simplify right side
    14,200,911.20x = 251,515,002,354,141.12
  5. Step 5: Solve for x
    x = 251,515,002,354,141.12/14,200,911.20
  6. Step 6: Final answer
    x = 17,711,187.60

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1.5x scale

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.