Home / 28,427,151.78-39,229,468.86-15,374,410.58

Finding the Fourth Proportional to 28,427,151.78, 39,229,468.86 and 15,374,410.58

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Solution

The fourth proportional to 28,427,151.78, 39,229,468.86 and 15,374,410.58 is: 21,216,686.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,427,151.78 : 39,229,468.86 = 15,374,410.58 : x
  2. Step 2: Convert to fraction form
    28,427,151.78/39,229,468.86 = 15,374,410.58/x
  3. Step 3: Cross multiply
    28,427,151.78x = 39,229,468.86 × 15,374,410.58
  4. Step 4: Simplify right side
    28,427,151.78x = 603,129,961,088,964.50
  5. Step 5: Solve for x
    x = 603,129,961,088,964.50/28,427,151.78
  6. Step 6: Final answer
    x = 21,216,686.28

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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.