Home / 372,307,145-513,777,592.22-205,058,981.30

Finding the Fourth Proportional to 372,307,145, 513,777,592.22 and 205,058,981.30

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Solution

The fourth proportional to 372,307,145, 513,777,592.22 and 205,058,981.30 is: 282,977,941.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,307,145 : 513,777,592.22 = 205,058,981.30 : x
  2. Step 2: Convert to fraction form
    372,307,145/513,777,592.22 = 205,058,981.30/x
  3. Step 3: Cross multiply
    372,307,145x = 513,777,592.22 × 205,058,981.30
  4. Step 4: Simplify right side
    372,307,145x = 105,354,709,675,400,016
  5. Step 5: Solve for x
    x = 105,354,709,675,400,016/372,307,145
  6. Step 6: Final answer
    x = 282,977,941.98

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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.