Home / 141,638,836.50-212,223,375.57-86,138,799.09

Finding the Fourth Proportional to 141,638,836.50, 212,223,375.57 and 86,138,799.09

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Solution

The fourth proportional to 141,638,836.50, 212,223,375.57 and 86,138,799.09 is: 129,065,354.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,638,836.50 : 212,223,375.57 = 86,138,799.09 : x
  2. Step 2: Convert to fraction form
    141,638,836.50/212,223,375.57 = 86,138,799.09/x
  3. Step 3: Cross multiply
    141,638,836.50x = 212,223,375.57 × 86,138,799.09
  4. Step 4: Simplify right side
    141,638,836.50x = 18,280,666,710,425,844
  5. Step 5: Solve for x
    x = 18,280,666,710,425,844/141,638,836.50
  6. Step 6: Final answer
    x = 129,065,354.97

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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.