Home / 382,042,728.28-527,213,921.82-212,495,822.68

Finding the Fourth Proportional to 382,042,728.28, 527,213,921.82 and 212,495,822.68

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Solution

The fourth proportional to 382,042,728.28, 527,213,921.82 and 212,495,822.68 is: 293,241,430.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,042,728.28 : 527,213,921.82 = 212,495,822.68 : x
  2. Step 2: Convert to fraction form
    382,042,728.28/527,213,921.82 = 212,495,822.68/x
  3. Step 3: Cross multiply
    382,042,728.28x = 527,213,921.82 × 212,495,822.68
  4. Step 4: Simplify right side
    382,042,728.28x = 112,030,756,045,490,112
  5. Step 5: Solve for x
    x = 112,030,756,045,490,112/382,042,728.28
  6. Step 6: Final answer
    x = 293,241,430.22

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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.