Home / 21,000,563.04-28,987,181.82-12,182,242.80

Finding the Fourth Proportional to 21,000,563.04, 28,987,181.82 and 12,182,242.80

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Solution

The fourth proportional to 21,000,563.04, 28,987,181.82 and 12,182,242.80 is: 16,815,210.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000,563.04 : 28,987,181.82 = 12,182,242.80 : x
  2. Step 2: Convert to fraction form
    21,000,563.04/28,987,181.82 = 12,182,242.80/x
  3. Step 3: Cross multiply
    21,000,563.04x = 28,987,181.82 × 12,182,242.80
  4. Step 4: Simplify right side
    21,000,563.04x = 353,128,887,018,985.94
  5. Step 5: Solve for x
    x = 353,128,887,018,985.94/21,000,563.04
  6. Step 6: Final answer
    x = 16,815,210.45

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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.