Home / 660,705,486.44-988,902,543.74-485,782,140.56

Finding the Fourth Proportional to 660,705,486.44, 988,902,543.74 and 485,782,140.56

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Solution

The fourth proportional to 660,705,486.44, 988,902,543.74 and 485,782,140.56 is: 727,088,247.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,705,486.44 : 988,902,543.74 = 485,782,140.56 : x
  2. Step 2: Convert to fraction form
    660,705,486.44/988,902,543.74 = 485,782,140.56/x
  3. Step 3: Cross multiply
    660,705,486.44x = 988,902,543.74 × 485,782,140.56
  4. Step 4: Simplify right side
    660,705,486.44x = 480,391,194,495,872,832
  5. Step 5: Solve for x
    x = 480,391,194,495,872,832/660,705,486.44
  6. Step 6: Final answer
    x = 727,088,247.88

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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.