Home / 28,539,628.61-39,384,793.52-15,486,890.21

Finding the Fourth Proportional to 28,539,628.61, 39,384,793.52 and 15,486,890.21

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Solution

The fourth proportional to 28,539,628.61, 39,384,793.52 and 15,486,890.21 is: 21,371,966.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539,628.61 : 39,384,793.52 = 15,486,890.21 : x
  2. Step 2: Convert to fraction form
    28,539,628.61/39,384,793.52 = 15,486,890.21/x
  3. Step 3: Cross multiply
    28,539,628.61x = 39,384,793.52 × 15,486,890.21
  4. Step 4: Simplify right side
    28,539,628.61x = 609,947,973,187,759.50
  5. Step 5: Solve for x
    x = 609,947,973,187,759.50/28,539,628.61
  6. Step 6: Final answer
    x = 21,371,966.03

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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.