Home / 38,719,780-53,436,419.60-22,201,441.40

Finding the Fourth Proportional to 38,719,780, 53,436,419.60 and 22,201,441.40

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Solution

The fourth proportional to 38,719,780, 53,436,419.60 and 22,201,441.40 is: 30,639,779.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,719,780 : 53,436,419.60 = 22,201,441.40 : x
  2. Step 2: Convert to fraction form
    38,719,780/53,436,419.60 = 22,201,441.40/x
  3. Step 3: Cross multiply
    38,719,780x = 53,436,419.60 × 22,201,441.40
  4. Step 4: Simplify right side
    38,719,780x = 1,186,365,538,375,211.50
  5. Step 5: Solve for x
    x = 1,186,365,538,375,211.50/38,719,780
  6. Step 6: Final answer
    x = 30,639,779.94

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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.