Home / 40,205,917.08-55,484,123.58-21,871,158.84

Finding the Fourth Proportional to 40,205,917.08, 55,484,123.58 and 21,871,158.84

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Solution

The fourth proportional to 40,205,917.08, 55,484,123.58 and 21,871,158.84 is: 30,182,176.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,205,917.08 : 55,484,123.58 = 21,871,158.84 : x
  2. Step 2: Convert to fraction form
    40,205,917.08/55,484,123.58 = 21,871,158.84/x
  3. Step 3: Cross multiply
    40,205,917.08x = 55,484,123.58 × 21,871,158.84
  4. Step 4: Simplify right side
    40,205,917.08x = 1,213,502,079,916,369.50
  5. Step 5: Solve for x
    x = 1,213,502,079,916,369.50/40,205,917.08
  6. Step 6: Final answer
    x = 30,182,176.36

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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.