Home / 13,872,001.20-20,808,001.80-9,085,095.60

Finding the Fourth Proportional to 13,872,001.20, 20,808,001.80 and 9,085,095.60

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Solution

The fourth proportional to 13,872,001.20, 20,808,001.80 and 9,085,095.60 is: 13,627,643.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872,001.20 : 20,808,001.80 = 9,085,095.60 : x
  2. Step 2: Convert to fraction form
    13,872,001.20/20,808,001.80 = 9,085,095.60/x
  3. Step 3: Cross multiply
    13,872,001.20x = 20,808,001.80 × 9,085,095.60
  4. Step 4: Simplify right side
    13,872,001.20x = 189,042,685,597,972.09
  5. Step 5: Solve for x
    x = 189,042,685,597,972.09/13,872,001.20
  6. Step 6: Final answer
    x = 13,627,643.40

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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.