Home / 661,808,159.19-913,265,799.53-379,348,103.88

Finding the Fourth Proportional to 661,808,159.19, 913,265,799.53 and 379,348,103.88

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Solution

The fourth proportional to 661,808,159.19, 913,265,799.53 and 379,348,103.88 is: 523,483,496.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,808,159.19 : 913,265,799.53 = 379,348,103.88 : x
  2. Step 2: Convert to fraction form
    661,808,159.19/913,265,799.53 = 379,348,103.88/x
  3. Step 3: Cross multiply
    661,808,159.19x = 913,265,799.53 × 379,348,103.88
  4. Step 4: Simplify right side
    661,808,159.19x = 346,445,649,388,260,928
  5. Step 5: Solve for x
    x = 346,445,649,388,260,928/661,808,159.19
  6. Step 6: Final answer
    x = 523,483,496.81

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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.