Home / 28,706,881.37-39,616,452.95-15,654,854.43

Finding the Fourth Proportional to 28,706,881.37, 39,616,452.95 and 15,654,854.43

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Solution

The fourth proportional to 28,706,881.37, 39,616,452.95 and 15,654,854.43 is: 21,604,220.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,706,881.37 : 39,616,452.95 = 15,654,854.43 : x
  2. Step 2: Convert to fraction form
    28,706,881.37/39,616,452.95 = 15,654,854.43/x
  3. Step 3: Cross multiply
    28,706,881.37x = 39,616,452.95 × 15,654,854.43
  4. Step 4: Simplify right side
    28,706,881.37x = 620,189,803,886,919.75
  5. Step 5: Solve for x
    x = 620,189,803,886,919.75/28,706,881.37
  6. Step 6: Final answer
    x = 21,604,220.81

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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.