Home / 13,361,457.60-20,042,186.40-6,642,993.60

Finding the Fourth Proportional to 13,361,457.60, 20,042,186.40 and 6,642,993.60

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Solution

The fourth proportional to 13,361,457.60, 20,042,186.40 and 6,642,993.60 is: 9,964,490.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361,457.60 : 20,042,186.40 = 6,642,993.60 : x
  2. Step 2: Convert to fraction form
    13,361,457.60/20,042,186.40 = 6,642,993.60/x
  3. Step 3: Cross multiply
    13,361,457.60x = 20,042,186.40 × 6,642,993.60
  4. Step 4: Simplify right side
    13,361,457.60x = 133,140,115,985,207.02
  5. Step 5: Solve for x
    x = 133,140,115,985,207.02/13,361,457.60
  6. Step 6: Final answer
    x = 9,964,490.40

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Similar ratio
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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.