Home / 28,921,360.53-39,911,553.33-15,690,536.77

Finding the Fourth Proportional to 28,921,360.53, 39,911,553.33 and 15,690,536.77

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Solution

The fourth proportional to 28,921,360.53, 39,911,553.33 and 15,690,536.77 is: 21,652,981.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921,360.53 : 39,911,553.33 = 15,690,536.77 : x
  2. Step 2: Convert to fraction form
    28,921,360.53/39,911,553.33 = 15,690,536.77/x
  3. Step 3: Cross multiply
    28,921,360.53x = 39,911,553.33 × 15,690,536.77
  4. Step 4: Simplify right side
    28,921,360.53x = 626,233,694,972,402
  5. Step 5: Solve for x
    x = 626,233,694,972,402/28,921,360.53
  6. Step 6: Final answer
    x = 21,652,981.86

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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.