Home / 9,212,946.48-12,714,139.08-5,138,478

Finding the Fourth Proportional to 9,212,946.48, 12,714,139.08 and 5,138,478

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Solution

The fourth proportional to 9,212,946.48, 12,714,139.08 and 5,138,478 is: 7,091,251.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,212,946.48 : 12,714,139.08 = 5,138,478 : x
  2. Step 2: Convert to fraction form
    9,212,946.48/12,714,139.08 = 5,138,478/x
  3. Step 3: Cross multiply
    9,212,946.48x = 12,714,139.08 × 5,138,478
  4. Step 4: Simplify right side
    9,212,946.48x = 65,331,323,951,520.24
  5. Step 5: Solve for x
    x = 65,331,323,951,520.24/9,212,946.48
  6. Step 6: Final answer
    x = 7,091,251.87

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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.