Home / 28,861,181.10-39,828,421.17-15,809,252.58

Finding the Fourth Proportional to 28,861,181.10, 39,828,421.17 and 15,809,252.58

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Solution

The fourth proportional to 28,861,181.10, 39,828,421.17 and 15,809,252.58 is: 21,816,763.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,861,181.10 : 39,828,421.17 = 15,809,252.58 : x
  2. Step 2: Convert to fraction form
    28,861,181.10/39,828,421.17 = 15,809,252.58/x
  3. Step 3: Cross multiply
    28,861,181.10x = 39,828,421.17 × 15,809,252.58
  4. Step 4: Simplify right side
    28,861,181.10x = 629,657,570,139,149.12
  5. Step 5: Solve for x
    x = 629,657,570,139,149.12/28,861,181.10
  6. Step 6: Final answer
    x = 21,816,763.77

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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.