Home / 228,698,790-343,019,820.48-135,381,288.48

Finding the Fourth Proportional to 228,698,790, 343,019,820.48 and 135,381,288.48

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Solution

The fourth proportional to 228,698,790, 343,019,820.48 and 135,381,288.48 is: 203,055,141.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,698,790 : 343,019,820.48 = 135,381,288.48 : x
  2. Step 2: Convert to fraction form
    228,698,790/343,019,820.48 = 135,381,288.48/x
  3. Step 3: Cross multiply
    228,698,790x = 343,019,820.48 × 135,381,288.48
  4. Step 4: Simplify right side
    228,698,790x = 46,438,465,270,760,688
  5. Step 5: Solve for x
    x = 46,438,465,270,760,688/228,698,790
  6. Step 6: Final answer
    x = 203,055,141.97

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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.