Home / 141,858,354.40-212,787,531.60-50,991,128.80

Finding the Fourth Proportional to 141,858,354.40, 212,787,531.60 and 50,991,128.80

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Solution

The fourth proportional to 141,858,354.40, 212,787,531.60 and 50,991,128.80 is: 76,486,693.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,858,354.40 : 212,787,531.60 = 50,991,128.80 : x
  2. Step 2: Convert to fraction form
    141,858,354.40/212,787,531.60 = 50,991,128.80/x
  3. Step 3: Cross multiply
    141,858,354.40x = 212,787,531.60 × 50,991,128.80
  4. Step 4: Simplify right side
    141,858,354.40x = 10,850,276,430,849,670
  5. Step 5: Solve for x
    x = 10,850,276,430,849,670/141,858,354.40
  6. Step 6: Final answer
    x = 76,486,693.20

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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.