Home / 40,205,918.58-55,484,125.65-21,871,160.34

Finding the Fourth Proportional to 40,205,918.58, 55,484,125.65 and 21,871,160.34

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Solution

The fourth proportional to 40,205,918.58, 55,484,125.65 and 21,871,160.34 is: 30,182,178.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,205,918.58 : 55,484,125.65 = 21,871,160.34 : x
  2. Step 2: Convert to fraction form
    40,205,918.58/55,484,125.65 = 21,871,160.34/x
  3. Step 3: Cross multiply
    40,205,918.58x = 55,484,125.65 × 21,871,160.34
  4. Step 4: Simplify right side
    40,205,918.58x = 1,213,502,208,415,856.75
  5. Step 5: Solve for x
    x = 1,213,502,208,415,856.75/40,205,918.58
  6. Step 6: Final answer
    x = 30,182,178.43

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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.