Home / 28,685,898-39,586,539.24-15,808,842

Finding the Fourth Proportional to 28,685,898, 39,586,539.24 and 15,808,842

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Solution

The fourth proportional to 28,685,898, 39,586,539.24 and 15,808,842 is: 21,816,201.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685,898 : 39,586,539.24 = 15,808,842 : x
  2. Step 2: Convert to fraction form
    28,685,898/39,586,539.24 = 15,808,842/x
  3. Step 3: Cross multiply
    28,685,898x = 39,586,539.24 × 15,808,842
  4. Step 4: Simplify right side
    28,685,898x = 625,817,344,171,960.12
  5. Step 5: Solve for x
    x = 625,817,344,171,960.12/28,685,898
  6. Step 6: Final answer
    x = 21,816,201.96

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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.