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Finding the Fourth Proportional to 19,798,682.10, 29,698,023.15 and 9,720,986.10

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Solution

The fourth proportional to 19,798,682.10, 29,698,023.15 and 9,720,986.10 is: 14,581,479.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,798,682.10 : 29,698,023.15 = 9,720,986.10 : x
  2. Step 2: Convert to fraction form
    19,798,682.10/29,698,023.15 = 9,720,986.10/x
  3. Step 3: Cross multiply
    19,798,682.10x = 29,698,023.15 × 9,720,986.10
  4. Step 4: Simplify right side
    19,798,682.10x = 288,694,070,238,628.19
  5. Step 5: Solve for x
    x = 288,694,070,238,628.19/19,798,682.10
  6. Step 6: Final answer
    x = 14,581,479.15

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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.