Home / 644,058,410.40-966,087,615.60-213,236,906.40

Finding the Fourth Proportional to 644,058,410.40, 966,087,615.60 and 213,236,906.40

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Solution

The fourth proportional to 644,058,410.40, 966,087,615.60 and 213,236,906.40 is: 319,855,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,058,410.40 : 966,087,615.60 = 213,236,906.40 : x
  2. Step 2: Convert to fraction form
    644,058,410.40/966,087,615.60 = 213,236,906.40/x
  3. Step 3: Cross multiply
    644,058,410.40x = 966,087,615.60 × 213,236,906.40
  4. Step 4: Simplify right side
    644,058,410.40x = 206,005,534,461,896,384
  5. Step 5: Solve for x
    x = 206,005,534,461,896,384/644,058,410.40
  6. Step 6: Final answer
    x = 319,855,359.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.