Home / 20,932,031.15-31,399,541.40-5,579,240.40

Finding the Fourth Proportional to 20,932,031.15, 31,399,541.40 and 5,579,240.40

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Solution

The fourth proportional to 20,932,031.15, 31,399,541.40 and 5,579,240.40 is: 8,369,258.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932,031.15 : 31,399,541.40 = 5,579,240.40 : x
  2. Step 2: Convert to fraction form
    20,932,031.15/31,399,541.40 = 5,579,240.40/x
  3. Step 3: Cross multiply
    20,932,031.15x = 31,399,541.40 × 5,579,240.40
  4. Step 4: Simplify right side
    20,932,031.15x = 175,185,589,920,352.56
  5. Step 5: Solve for x
    x = 175,185,589,920,352.56/20,932,031.15
  6. Step 6: Final answer
    x = 8,369,258.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.