Home / 505,428,644.52-758,189,233.98-141,920,551.08

Finding the Fourth Proportional to 505,428,644.52, 758,189,233.98 and 141,920,551.08

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Solution

The fourth proportional to 505,428,644.52, 758,189,233.98 and 141,920,551.08 is: 212,893,818.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,428,644.52 : 758,189,233.98 = 141,920,551.08 : x
  2. Step 2: Convert to fraction form
    505,428,644.52/758,189,233.98 = 141,920,551.08/x
  3. Step 3: Cross multiply
    505,428,644.52x = 758,189,233.98 × 141,920,551.08
  4. Step 4: Simplify right side
    505,428,644.52x = 107,602,633,909,364,672
  5. Step 5: Solve for x
    x = 107,602,633,909,364,672/505,428,644.52
  6. Step 6: Final answer
    x = 212,893,818.10

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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.