Home / 28,427,054.88-39,229,335.74-15,374,313.78

Finding the Fourth Proportional to 28,427,054.88, 39,229,335.74 and 15,374,313.78

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Solution

The fourth proportional to 28,427,054.88, 39,229,335.74 and 15,374,313.78 is: 21,216,553.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,427,054.88 : 39,229,335.74 = 15,374,313.78 : x
  2. Step 2: Convert to fraction form
    28,427,054.88/39,229,335.74 = 15,374,313.78/x
  3. Step 3: Cross multiply
    28,427,054.88x = 39,229,335.74 × 15,374,313.78
  4. Step 4: Simplify right side
    28,427,054.88x = 603,124,117,047,728.50
  5. Step 5: Solve for x
    x = 603,124,117,047,728.50/28,427,054.88
  6. Step 6: Final answer
    x = 21,216,553.02

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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.