Home / 28,449,799-39,261,344.70-15,572,743

Finding the Fourth Proportional to 28,449,799, 39,261,344.70 and 15,572,743

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Solution

The fourth proportional to 28,449,799, 39,261,344.70 and 15,572,743 is: 21,490,725.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449,799 : 39,261,344.70 = 15,572,743 : x
  2. Step 2: Convert to fraction form
    28,449,799/39,261,344.70 = 15,572,743/x
  3. Step 3: Cross multiply
    28,449,799x = 39,261,344.70 × 15,572,743
  4. Step 4: Simplify right side
    28,449,799x = 611,406,830,847,512.12
  5. Step 5: Solve for x
    x = 611,406,830,847,512.12/28,449,799
  6. Step 6: Final answer
    x = 21,490,725.85

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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.