Home / 72,700,271.64-100,324,760.22-40,105,215

Finding the Fourth Proportional to 72,700,271.64, 100,324,760.22 and 40,105,215

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Solution

The fourth proportional to 72,700,271.64, 100,324,760.22 and 40,105,215 is: 55,344,305.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,700,271.64 : 100,324,760.22 = 40,105,215 : x
  2. Step 2: Convert to fraction form
    72,700,271.64/100,324,760.22 = 40,105,215/x
  3. Step 3: Cross multiply
    72,700,271.64x = 100,324,760.22 × 40,105,215
  4. Step 4: Simplify right side
    72,700,271.64x = 4,023,546,078,446,547.50
  5. Step 5: Solve for x
    x = 4,023,546,078,446,547.50/72,700,271.64
  6. Step 6: Final answer
    x = 55,344,305.98

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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.