Home / 20,476,909.79-28,257,949.46-11,184,477.92

Finding the Fourth Proportional to 20,476,909.79, 28,257,949.46 and 11,184,477.92

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Solution

The fourth proportional to 20,476,909.79, 28,257,949.46 and 11,184,477.92 is: 15,434,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,476,909.79 : 28,257,949.46 = 11,184,477.92 : x
  2. Step 2: Convert to fraction form
    20,476,909.79/28,257,949.46 = 11,184,477.92/x
  3. Step 3: Cross multiply
    20,476,909.79x = 28,257,949.46 × 11,184,477.92
  4. Step 4: Simplify right side
    20,476,909.79x = 316,050,411,602,633.75
  5. Step 5: Solve for x
    x = 316,050,411,602,633.75/20,476,909.79
  6. Step 6: Final answer
    x = 15,434,477.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.