Home / 21,969,098.10-30,318,092.64-12,178,957.77

Finding the Fourth Proportional to 21,969,098.10, 30,318,092.64 and 12,178,957.77

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Solution

The fourth proportional to 21,969,098.10, 30,318,092.64 and 12,178,957.77 is: 16,807,370.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,969,098.10 : 30,318,092.64 = 12,178,957.77 : x
  2. Step 2: Convert to fraction form
    21,969,098.10/30,318,092.64 = 12,178,957.77/x
  3. Step 3: Cross multiply
    21,969,098.10x = 30,318,092.64 × 12,178,957.77
  4. Step 4: Simplify right side
    21,969,098.10x = 369,242,769,929,507.81
  5. Step 5: Solve for x
    x = 369,242,769,929,507.81/21,969,098.10
  6. Step 6: Final answer
    x = 16,807,370.44

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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.