Home / 19,821,985.20-29,732,977.80-12,263,713.20

Finding the Fourth Proportional to 19,821,985.20, 29,732,977.80 and 12,263,713.20

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Solution

The fourth proportional to 19,821,985.20, 29,732,977.80 and 12,263,713.20 is: 18,395,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821,985.20 : 29,732,977.80 = 12,263,713.20 : x
  2. Step 2: Convert to fraction form
    19,821,985.20/29,732,977.80 = 12,263,713.20/x
  3. Step 3: Cross multiply
    19,821,985.20x = 29,732,977.80 × 12,263,713.20
  4. Step 4: Simplify right side
    19,821,985.20x = 364,636,712,321,166.94
  5. Step 5: Solve for x
    x = 364,636,712,321,166.94/19,821,985.20
  6. Step 6: Final answer
    x = 18,395,569.80

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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.