Home / 40,238,840-55,529,605.68-21,904,263.20

Finding the Fourth Proportional to 40,238,840, 55,529,605.68 and 21,904,263.20

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Solution

The fourth proportional to 40,238,840, 55,529,605.68 and 21,904,263.20 is: 30,227,886.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,238,840 : 55,529,605.68 = 21,904,263.20 : x
  2. Step 2: Convert to fraction form
    40,238,840/55,529,605.68 = 21,904,263.20/x
  3. Step 3: Cross multiply
    40,238,840x = 55,529,605.68 × 21,904,263.20
  4. Step 4: Simplify right side
    40,238,840x = 1,216,335,098,206,935
  5. Step 5: Solve for x
    x = 1,216,335,098,206,935/40,238,840
  6. Step 6: Final answer
    x = 30,227,886.74

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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.