Home / 505,428,651.78-758,189,244.88-141,920,558.34

Finding the Fourth Proportional to 505,428,651.78, 758,189,244.88 and 141,920,558.34

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Solution

The fourth proportional to 505,428,651.78, 758,189,244.88 and 141,920,558.34 is: 212,893,828.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,428,651.78 : 758,189,244.88 = 141,920,558.34 : x
  2. Step 2: Convert to fraction form
    505,428,651.78/758,189,244.88 = 141,920,558.34/x
  3. Step 3: Cross multiply
    505,428,651.78x = 758,189,244.88 × 141,920,558.34
  4. Step 4: Simplify right side
    505,428,651.78x = 107,602,640,960,752,592
  5. Step 5: Solve for x
    x = 107,602,640,960,752,592/505,428,651.78
  6. Step 6: Final answer
    x = 212,893,828.99

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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.