Home / 252,290,619.20-378,435,928.80-70,537,505.60

Finding the Fourth Proportional to 252,290,619.20, 378,435,928.80 and 70,537,505.60

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Solution

The fourth proportional to 252,290,619.20, 378,435,928.80 and 70,537,505.60 is: 105,806,258.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,290,619.20 : 378,435,928.80 = 70,537,505.60 : x
  2. Step 2: Convert to fraction form
    252,290,619.20/378,435,928.80 = 70,537,505.60/x
  3. Step 3: Cross multiply
    252,290,619.20x = 378,435,928.80 × 70,537,505.60
  4. Step 4: Simplify right side
    252,290,619.20x = 26,693,926,446,971,200
  5. Step 5: Solve for x
    x = 26,693,926,446,971,200/252,290,619.20
  6. Step 6: Final answer
    x = 105,806,258.40

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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.