Home / 466,227,254.89-643,376,712.89-257,378,902.57

Finding the Fourth Proportional to 466,227,254.89, 643,376,712.89 and 257,378,902.57

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Solution

The fourth proportional to 466,227,254.89, 643,376,712.89 and 257,378,902.57 is: 355,173,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,227,254.89 : 643,376,712.89 = 257,378,902.57 : x
  2. Step 2: Convert to fraction form
    466,227,254.89/643,376,712.89 = 257,378,902.57/x
  3. Step 3: Cross multiply
    466,227,254.89x = 643,376,712.89 × 257,378,902.57
  4. Step 4: Simplify right side
    466,227,254.89x = 165,591,592,301,435,264
  5. Step 5: Solve for x
    x = 165,591,592,301,435,264/466,227,254.89
  6. Step 6: Final answer
    x = 355,173,556.60

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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.