Home / 386,574,975.48-533,473,553.16-212,734,719.48

Finding the Fourth Proportional to 386,574,975.48, 533,473,553.16 and 212,734,719.48

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Solution

The fourth proportional to 386,574,975.48, 533,473,553.16 and 212,734,719.48 is: 293,573,960.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,574,975.48 : 533,473,553.16 = 212,734,719.48 : x
  2. Step 2: Convert to fraction form
    386,574,975.48/533,473,553.16 = 212,734,719.48/x
  3. Step 3: Cross multiply
    386,574,975.48x = 533,473,553.16 × 212,734,719.48
  4. Step 4: Simplify right side
    386,574,975.48x = 113,488,346,681,491,472
  5. Step 5: Solve for x
    x = 113,488,346,681,491,472/386,574,975.48
  6. Step 6: Final answer
    x = 293,573,960.76

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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.