Home / 438,763,676.40-658,145,514.60-180,164,485.80

Finding the Fourth Proportional to 438,763,676.40, 658,145,514.60 and 180,164,485.80

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Solution

The fourth proportional to 438,763,676.40, 658,145,514.60 and 180,164,485.80 is: 270,246,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,763,676.40 : 658,145,514.60 = 180,164,485.80 : x
  2. Step 2: Convert to fraction form
    438,763,676.40/658,145,514.60 = 180,164,485.80/x
  3. Step 3: Cross multiply
    438,763,676.40x = 658,145,514.60 × 180,164,485.80
  4. Step 4: Simplify right side
    438,763,676.40x = 118,574,448,219,485,408
  5. Step 5: Solve for x
    x = 118,574,448,219,485,408/438,763,676.40
  6. Step 6: Final answer
    x = 270,246,728.70

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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.