Home / 40,011,655.82-55,216,143.06-21,676,941.32

Finding the Fourth Proportional to 40,011,655.82, 55,216,143.06 and 21,676,941.32

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Solution

The fourth proportional to 40,011,655.82, 55,216,143.06 and 21,676,941.32 is: 29,914,210.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,011,655.82 : 55,216,143.06 = 21,676,941.32 : x
  2. Step 2: Convert to fraction form
    40,011,655.82/55,216,143.06 = 21,676,941.32/x
  3. Step 3: Cross multiply
    40,011,655.82x = 55,216,143.06 × 21,676,941.32
  4. Step 4: Simplify right side
    40,011,655.82x = 1,196,917,093,028,345.25
  5. Step 5: Solve for x
    x = 1,196,917,093,028,345.25/40,011,655.82
  6. Step 6: Final answer
    x = 29,914,210.46

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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.