Home / 386,070,342.78-525,649,508.05-384,844,520.17

Finding the Fourth Proportional to 386,070,342.78, 525,649,508.05 and 384,844,520.17

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Solution

The fourth proportional to 386,070,342.78, 525,649,508.05 and 384,844,520.17 is: 523,980,503.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,070,342.78 : 525,649,508.05 = 384,844,520.17 : x
  2. Step 2: Convert to fraction form
    386,070,342.78/525,649,508.05 = 384,844,520.17/x
  3. Step 3: Cross multiply
    386,070,342.78x = 525,649,508.05 × 384,844,520.17
  4. Step 4: Simplify right side
    386,070,342.78x = 202,293,332,700,554,016
  5. Step 5: Solve for x
    x = 202,293,332,700,554,016/386,070,342.78
  6. Step 6: Final answer
    x = 523,980,503.77

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.