Home / 383,969,029.59-529,876,918.35-216,740,490.12

Finding the Fourth Proportional to 383,969,029.59, 529,876,918.35 and 216,740,490.12

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Solution

The fourth proportional to 383,969,029.59, 529,876,918.35 and 216,740,490.12 is: 299,101,683.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,969,029.59 : 529,876,918.35 = 216,740,490.12 : x
  2. Step 2: Convert to fraction form
    383,969,029.59/529,876,918.35 = 216,740,490.12/x
  3. Step 3: Cross multiply
    383,969,029.59x = 529,876,918.35 × 216,740,490.12
  4. Step 4: Simplify right side
    383,969,029.59x = 114,845,782,986,454,224
  5. Step 5: Solve for x
    x = 114,845,782,986,454,224/383,969,029.59
  6. Step 6: Final answer
    x = 299,101,683.04

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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.