Home / 21,000,560.04-28,987,177.68-12,182,239.80

Finding the Fourth Proportional to 21,000,560.04, 28,987,177.68 and 12,182,239.80

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Solution

The fourth proportional to 21,000,560.04, 28,987,177.68 and 12,182,239.80 is: 16,815,206.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000,560.04 : 28,987,177.68 = 12,182,239.80 : x
  2. Step 2: Convert to fraction form
    21,000,560.04/28,987,177.68 = 12,182,239.80/x
  3. Step 3: Cross multiply
    21,000,560.04x = 28,987,177.68 × 12,182,239.80
  4. Step 4: Simplify right side
    21,000,560.04x = 353,128,749,622,967.69
  5. Step 5: Solve for x
    x = 353,128,749,622,967.69/21,000,560.04
  6. Step 6: Final answer
    x = 16,815,206.31

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1.5x scale

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.