Home / 40,011,139.02-55,215,427.89-21,676,424.52

Finding the Fourth Proportional to 40,011,139.02, 55,215,427.89 and 21,676,424.52

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Solution

The fourth proportional to 40,011,139.02, 55,215,427.89 and 21,676,424.52 is: 29,913,496.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,011,139.02 : 55,215,427.89 = 21,676,424.52 : x
  2. Step 2: Convert to fraction form
    40,011,139.02/55,215,427.89 = 21,676,424.52/x
  3. Step 3: Cross multiply
    40,011,139.02x = 55,215,427.89 × 21,676,424.52
  4. Step 4: Simplify right side
    40,011,139.02x = 1,196,873,054,997,087.75
  5. Step 5: Solve for x
    x = 1,196,873,054,997,087.75/40,011,139.02
  6. Step 6: Final answer
    x = 29,913,496.20

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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.