Home / 28,685,900-39,586,542-15,808,844

Finding the Fourth Proportional to 28,685,900, 39,586,542 and 15,808,844

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Solution

The fourth proportional to 28,685,900, 39,586,542 and 15,808,844 is: 21,816,204.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685,900 : 39,586,542 = 15,808,844 : x
  2. Step 2: Convert to fraction form
    28,685,900/39,586,542 = 15,808,844/x
  3. Step 3: Cross multiply
    28,685,900x = 39,586,542 × 15,808,844
  4. Step 4: Simplify right side
    28,685,900x = 625,817,466,977,448
  5. Step 5: Solve for x
    x = 625,817,466,977,448/28,685,900
  6. Step 6: Final answer
    x = 21,816,204.72

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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.