Home / 20,701,307.54-28,567,998.06-11,409,218.12

Finding the Fourth Proportional to 20,701,307.54, 28,567,998.06 and 11,409,218.12

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Solution

The fourth proportional to 20,701,307.54, 28,567,998.06 and 11,409,218.12 is: 15,744,827.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701,307.54 : 28,567,998.06 = 11,409,218.12 : x
  2. Step 2: Convert to fraction form
    20,701,307.54/28,567,998.06 = 11,409,218.12/x
  3. Step 3: Cross multiply
    20,701,307.54x = 28,567,998.06 × 11,409,218.12
  4. Step 4: Simplify right side
    20,701,307.54x = 325,938,521,118,276.81
  5. Step 5: Solve for x
    x = 325,938,521,118,276.81/20,701,307.54
  6. Step 6: Final answer
    x = 15,744,827.74

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.