Home / 15,128,741.52-20,874,807.96-9,017,738.64

Finding the Fourth Proportional to 15,128,741.52, 20,874,807.96 and 9,017,738.64

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Solution

The fourth proportional to 15,128,741.52, 20,874,807.96 and 9,017,738.64 is: 12,442,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128,741.52 : 20,874,807.96 = 9,017,738.64 : x
  2. Step 2: Convert to fraction form
    15,128,741.52/20,874,807.96 = 9,017,738.64/x
  3. Step 3: Cross multiply
    15,128,741.52x = 20,874,807.96 × 9,017,738.64
  4. Step 4: Simplify right side
    15,128,741.52x = 188,243,562,343,471.59
  5. Step 5: Solve for x
    x = 188,243,562,343,471.59/15,128,741.52
  6. Step 6: Final answer
    x = 12,442,777.35

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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.