Home / 31,309,038-43,208,516.07-18,078,773.40

Finding the Fourth Proportional to 31,309,038, 43,208,516.07 and 18,078,773.40

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Solution

The fourth proportional to 31,309,038, 43,208,516.07 and 18,078,773.40 is: 24,949,887.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,309,038 : 43,208,516.07 = 18,078,773.40 : x
  2. Step 2: Convert to fraction form
    31,309,038/43,208,516.07 = 18,078,773.40/x
  3. Step 3: Cross multiply
    31,309,038x = 43,208,516.07 × 18,078,773.40
  4. Step 4: Simplify right side
    31,309,038x = 781,156,970,979,788.50
  5. Step 5: Solve for x
    x = 781,156,970,979,788.50/31,309,038
  6. Step 6: Final answer
    x = 24,949,887.34

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1.5x scale

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.