Home / 193,537,909.20-290,306,863.80-86,042,485.20

Finding the Fourth Proportional to 193,537,909.20, 290,306,863.80 and 86,042,485.20

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Solution

The fourth proportional to 193,537,909.20, 290,306,863.80 and 86,042,485.20 is: 129,063,727.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,537,909.20 : 290,306,863.80 = 86,042,485.20 : x
  2. Step 2: Convert to fraction form
    193,537,909.20/290,306,863.80 = 86,042,485.20/x
  3. Step 3: Cross multiply
    193,537,909.20x = 290,306,863.80 × 86,042,485.20
  4. Step 4: Simplify right side
    193,537,909.20x = 24,978,724,031,969,916
  5. Step 5: Solve for x
    x = 24,978,724,031,969,916/193,537,909.20
  6. Step 6: Final answer
    x = 129,063,727.80

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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.