Home / 379,166,140.92-523,265,434.19-211,902,397.28

Finding the Fourth Proportional to 379,166,140.92, 523,265,434.19 and 211,902,397.28

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Solution

The fourth proportional to 379,166,140.92, 523,265,434.19 and 211,902,397.28 is: 292,434,339.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,166,140.92 : 523,265,434.19 = 211,902,397.28 : x
  2. Step 2: Convert to fraction form
    379,166,140.92/523,265,434.19 = 211,902,397.28/x
  3. Step 3: Cross multiply
    379,166,140.92x = 523,265,434.19 × 211,902,397.28
  4. Step 4: Simplify right side
    379,166,140.92x = 110,881,199,917,702,128
  5. Step 5: Solve for x
    x = 110,881,199,917,702,128/379,166,140.92
  6. Step 6: Final answer
    x = 292,434,339.34

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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.