Home / 20,078,811.90-30,181,203.45-19,700,898.30

Finding the Fourth Proportional to 20,078,811.90, 30,181,203.45 and 19,700,898.30

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Solution

The fourth proportional to 20,078,811.90, 30,181,203.45 and 19,700,898.30 is: 29,613,147.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,078,811.90 : 30,181,203.45 = 19,700,898.30 : x
  2. Step 2: Convert to fraction form
    20,078,811.90/30,181,203.45 = 19,700,898.30/x
  3. Step 3: Cross multiply
    20,078,811.90x = 30,181,203.45 × 19,700,898.30
  4. Step 4: Simplify right side
    20,078,811.90x = 594,596,819,740,059.12
  5. Step 5: Solve for x
    x = 594,596,819,740,059.12/20,078,811.90
  6. Step 6: Final answer
    x = 29,613,147.57

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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.