Home / 28,930,209.48-39,923,568.36-15,877,681.56

Finding the Fourth Proportional to 28,930,209.48, 39,923,568.36 and 15,877,681.56

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Solution

The fourth proportional to 28,930,209.48, 39,923,568.36 and 15,877,681.56 is: 21,911,134.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930,209.48 : 39,923,568.36 = 15,877,681.56 : x
  2. Step 2: Convert to fraction form
    28,930,209.48/39,923,568.36 = 15,877,681.56/x
  3. Step 3: Cross multiply
    28,930,209.48x = 39,923,568.36 × 15,877,681.56
  4. Step 4: Simplify right side
    28,930,209.48x = 633,893,705,158,971.50
  5. Step 5: Solve for x
    x = 633,893,705,158,971.50/28,930,209.48
  6. Step 6: Final answer
    x = 21,911,134.30

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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.