Home / 28,857,282.48-39,823,484.76-15,805,748.16

Finding the Fourth Proportional to 28,857,282.48, 39,823,484.76 and 15,805,748.16

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Solution

The fourth proportional to 28,857,282.48, 39,823,484.76 and 15,805,748.16 is: 21,812,170.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,857,282.48 : 39,823,484.76 = 15,805,748.16 : x
  2. Step 2: Convert to fraction form
    28,857,282.48/39,823,484.76 = 15,805,748.16/x
  3. Step 3: Cross multiply
    28,857,282.48x = 39,823,484.76 × 15,805,748.16
  4. Step 4: Simplify right side
    28,857,282.48x = 629,439,970,970,158
  5. Step 5: Solve for x
    x = 629,439,970,970,158/28,857,282.48
  6. Step 6: Final answer
    x = 21,812,170.69

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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.