Home / 390,677,341.74-539,114,932.80-231,914,250.96

Finding the Fourth Proportional to 390,677,341.74, 539,114,932.80 and 231,914,250.96

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Solution

The fourth proportional to 390,677,341.74, 539,114,932.80 and 231,914,250.96 is: 320,029,913.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,677,341.74 : 539,114,932.80 = 231,914,250.96 : x
  2. Step 2: Convert to fraction form
    390,677,341.74/539,114,932.80 = 231,914,250.96/x
  3. Step 3: Cross multiply
    390,677,341.74x = 539,114,932.80 × 231,914,250.96
  4. Step 4: Simplify right side
    390,677,341.74x = 125,028,435,821,662,736
  5. Step 5: Solve for x
    x = 125,028,435,821,662,736/390,677,341.74
  6. Step 6: Final answer
    x = 320,029,913.34

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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.