Home / 660,705,425.48-988,902,452.40-485,782,079.60

Finding the Fourth Proportional to 660,705,425.48, 988,902,452.40 and 485,782,079.60

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Solution

The fourth proportional to 660,705,425.48, 988,902,452.40 and 485,782,079.60 is: 727,088,156.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,705,425.48 : 988,902,452.40 = 485,782,079.60 : x
  2. Step 2: Convert to fraction form
    660,705,425.48/988,902,452.40 = 485,782,079.60/x
  3. Step 3: Cross multiply
    660,705,425.48x = 988,902,452.40 × 485,782,079.60
  4. Step 4: Simplify right side
    660,705,425.48x = 480,391,089,848,412,032
  5. Step 5: Solve for x
    x = 480,391,089,848,412,032/660,705,425.48
  6. Step 6: Final answer
    x = 727,088,156.57

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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.