Home / 13,361,738.60-20,042,607.90-6,643,274.60

Finding the Fourth Proportional to 13,361,738.60, 20,042,607.90 and 6,643,274.60

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Solution

The fourth proportional to 13,361,738.60, 20,042,607.90 and 6,643,274.60 is: 9,964,911.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361,738.60 : 20,042,607.90 = 6,643,274.60 : x
  2. Step 2: Convert to fraction form
    13,361,738.60/20,042,607.90 = 6,643,274.60/x
  3. Step 3: Cross multiply
    13,361,738.60x = 20,042,607.90 × 6,643,274.60
  4. Step 4: Simplify right side
    13,361,738.60x = 133,148,547,979,829.33
  5. Step 5: Solve for x
    x = 133,148,547,979,829.33/13,361,738.60
  6. Step 6: Final answer
    x = 9,964,911.90

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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.