Home / 238,022,749.38-356,871,129.69-121,211,992.98

Finding the Fourth Proportional to 238,022,749.38, 356,871,129.69 and 121,211,992.98

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Solution

The fourth proportional to 238,022,749.38, 356,871,129.69 and 121,211,992.98 is: 181,734,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,022,749.38 : 356,871,129.69 = 121,211,992.98 : x
  2. Step 2: Convert to fraction form
    238,022,749.38/356,871,129.69 = 121,211,992.98/x
  3. Step 3: Cross multiply
    238,022,749.38x = 356,871,129.69 × 121,211,992.98
  4. Step 4: Simplify right side
    238,022,749.38x = 43,257,060,866,748,952
  5. Step 5: Solve for x
    x = 43,257,060,866,748,952/238,022,749.38
  6. Step 6: Final answer
    x = 181,734,985.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.