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Finding the Fourth Proportional to 18,899,011.12, 28,352,651.04 and 6,120,807.52

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Solution

The fourth proportional to 18,899,011.12, 28,352,651.04 and 6,120,807.52 is: 9,182,550.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,899,011.12 : 28,352,651.04 = 6,120,807.52 : x
  2. Step 2: Convert to fraction form
    18,899,011.12/28,352,651.04 = 6,120,807.52/x
  3. Step 3: Cross multiply
    18,899,011.12x = 28,352,651.04 × 6,120,807.52
  4. Step 4: Simplify right side
    18,899,011.12x = 173,541,119,697,567.81
  5. Step 5: Solve for x
    x = 173,541,119,697,567.81/18,899,011.12
  6. Step 6: Final answer
    x = 9,182,550.27

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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.