Home / 21,243,056.85-29,310,379.61-12,074,977.89

Finding the Fourth Proportional to 21,243,056.85, 29,310,379.61 and 12,074,977.89

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Solution

The fourth proportional to 21,243,056.85, 29,310,379.61 and 12,074,977.89 is: 16,660,605.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,243,056.85 : 29,310,379.61 = 12,074,977.89 : x
  2. Step 2: Convert to fraction form
    21,243,056.85/29,310,379.61 = 12,074,977.89/x
  3. Step 3: Cross multiply
    21,243,056.85x = 29,310,379.61 × 12,074,977.89
  4. Step 4: Simplify right side
    21,243,056.85x = 353,922,185,677,881.94
  5. Step 5: Solve for x
    x = 353,922,185,677,881.94/21,243,056.85
  6. Step 6: Final answer
    x = 16,660,605.31

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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.