Home / 342,411,151.50-513,314,393.13-261,991,137.42

Finding the Fourth Proportional to 342,411,151.50, 513,314,393.13 and 261,991,137.42

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Solution

The fourth proportional to 342,411,151.50, 513,314,393.13 and 261,991,137.42 is: 392,755,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,411,151.50 : 513,314,393.13 = 261,991,137.42 : x
  2. Step 2: Convert to fraction form
    342,411,151.50/513,314,393.13 = 261,991,137.42/x
  3. Step 3: Cross multiply
    342,411,151.50x = 513,314,393.13 × 261,991,137.42
  4. Step 4: Simplify right side
    342,411,151.50x = 134,483,821,710,185,728
  5. Step 5: Solve for x
    x = 134,483,821,710,185,728/342,411,151.50
  6. Step 6: Final answer
    x = 392,755,379.38

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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.