Home / 290,070,723.20-435,609,969.60-154,021,827.20

Finding the Fourth Proportional to 290,070,723.20, 435,609,969.60 and 154,021,827.20

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Solution

The fourth proportional to 290,070,723.20, 435,609,969.60 and 154,021,827.20 is: 231,300,293.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,070,723.20 : 435,609,969.60 = 154,021,827.20 : x
  2. Step 2: Convert to fraction form
    290,070,723.20/435,609,969.60 = 154,021,827.20/x
  3. Step 3: Cross multiply
    290,070,723.20x = 435,609,969.60 × 154,021,827.20
  4. Step 4: Simplify right side
    290,070,723.20x = 67,093,443,464,328,448
  5. Step 5: Solve for x
    x = 67,093,443,464,328,448/290,070,723.20
  6. Step 6: Final answer
    x = 231,300,293.68

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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.