Home / 261,931,582.21-392,783,310.71-75,144,311.66

Finding the Fourth Proportional to 261,931,582.21, 392,783,310.71 and 75,144,311.66

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Solution

The fourth proportional to 261,931,582.21, 392,783,310.71 and 75,144,311.66 is: 112,683,744.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,931,582.21 : 392,783,310.71 = 75,144,311.66 : x
  2. Step 2: Convert to fraction form
    261,931,582.21/392,783,310.71 = 75,144,311.66/x
  3. Step 3: Cross multiply
    261,931,582.21x = 392,783,310.71 × 75,144,311.66
  4. Step 4: Simplify right side
    261,931,582.21x = 29,515,431,514,463,132
  5. Step 5: Solve for x
    x = 29,515,431,514,463,132/261,931,582.21
  6. Step 6: Final answer
    x = 112,683,744.61

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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.