Home / 279,938,527.20-419,907,790.80-98,162,085.60

Finding the Fourth Proportional to 279,938,527.20, 419,907,790.80 and 98,162,085.60

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Solution

The fourth proportional to 279,938,527.20, 419,907,790.80 and 98,162,085.60 is: 147,243,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,938,527.20 : 419,907,790.80 = 98,162,085.60 : x
  2. Step 2: Convert to fraction form
    279,938,527.20/419,907,790.80 = 98,162,085.60/x
  3. Step 3: Cross multiply
    279,938,527.20x = 419,907,790.80 × 98,162,085.60
  4. Step 4: Simplify right side
    279,938,527.20x = 41,219,024,504,616,488
  5. Step 5: Solve for x
    x = 41,219,024,504,616,488/279,938,527.20
  6. Step 6: Final answer
    x = 147,243,128.40

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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.