Home / 28,706,881.87-39,616,453.64-15,654,854.93

Finding the Fourth Proportional to 28,706,881.87, 39,616,453.64 and 15,654,854.93

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Solution

The fourth proportional to 28,706,881.87, 39,616,453.64 and 15,654,854.93 is: 21,604,221.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,706,881.87 : 39,616,453.64 = 15,654,854.93 : x
  2. Step 2: Convert to fraction form
    28,706,881.87/39,616,453.64 = 15,654,854.93/x
  3. Step 3: Cross multiply
    28,706,881.87x = 39,616,453.64 × 15,654,854.93
  4. Step 4: Simplify right side
    28,706,881.87x = 620,189,834,575,270.50
  5. Step 5: Solve for x
    x = 620,189,834,575,270.50/28,706,881.87
  6. Step 6: Final answer
    x = 21,604,221.50

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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.