Home / 20,768,475.68-28,662,130.23-11,827,963.91

Finding the Fourth Proportional to 20,768,475.68, 28,662,130.23 and 11,827,963.91

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Solution

The fourth proportional to 20,768,475.68, 28,662,130.23 and 11,827,963.91 is: 16,323,520.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,768,475.68 : 28,662,130.23 = 11,827,963.91 : x
  2. Step 2: Convert to fraction form
    20,768,475.68/28,662,130.23 = 11,827,963.91/x
  3. Step 3: Cross multiply
    20,768,475.68x = 28,662,130.23 × 11,827,963.91
  4. Step 4: Simplify right side
    20,768,475.68x = 339,014,641,865,639.88
  5. Step 5: Solve for x
    x = 339,014,641,865,639.88/20,768,475.68
  6. Step 6: Final answer
    x = 16,323,520.66

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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.