Home / 431,569,554.40-647,354,331.60-158,883,896.80

Finding the Fourth Proportional to 431,569,554.40, 647,354,331.60 and 158,883,896.80

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Solution

The fourth proportional to 431,569,554.40, 647,354,331.60 and 158,883,896.80 is: 238,325,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569,554.40 : 647,354,331.60 = 158,883,896.80 : x
  2. Step 2: Convert to fraction form
    431,569,554.40/647,354,331.60 = 158,883,896.80/x
  3. Step 3: Cross multiply
    431,569,554.40x = 647,354,331.60 × 158,883,896.80
  4. Step 4: Simplify right side
    431,569,554.40x = 102,854,178,814,967,392
  5. Step 5: Solve for x
    x = 102,854,178,814,967,392/431,569,554.40
  6. Step 6: Final answer
    x = 238,325,845.20

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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.