Home / 372,307,128.45-513,777,569.43-205,058,964.76

Finding the Fourth Proportional to 372,307,128.45, 513,777,569.43 and 205,058,964.76

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Solution

The fourth proportional to 372,307,128.45, 513,777,569.43 and 205,058,964.76 is: 282,977,919.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,307,128.45 : 513,777,569.43 = 205,058,964.76 : x
  2. Step 2: Convert to fraction form
    372,307,128.45/513,777,569.43 = 205,058,964.76/x
  3. Step 3: Cross multiply
    372,307,128.45x = 513,777,569.43 × 205,058,964.76
  4. Step 4: Simplify right side
    372,307,128.45x = 105,354,696,503,135,184
  5. Step 5: Solve for x
    x = 105,354,696,503,135,184/372,307,128.45
  6. Step 6: Final answer
    x = 282,977,919.17

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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.