Home / 313,301,646.18-432,367,940.07-187,874,262.86

Finding the Fourth Proportional to 313,301,646.18, 432,367,940.07 and 187,874,262.86

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Solution

The fourth proportional to 313,301,646.18, 432,367,940.07 and 187,874,262.86 is: 259,273,479.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,301,646.18 : 432,367,940.07 = 187,874,262.86 : x
  2. Step 2: Convert to fraction form
    313,301,646.18/432,367,940.07 = 187,874,262.86/x
  3. Step 3: Cross multiply
    313,301,646.18x = 432,367,940.07 × 187,874,262.86
  4. Step 4: Simplify right side
    313,301,646.18x = 81,230,808,022,786,064
  5. Step 5: Solve for x
    x = 81,230,808,022,786,064/313,301,646.18
  6. Step 6: Final answer
    x = 259,273,479.77

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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.