Home / 896,728,770.36-1,237,332,447.54-520,299,062.46

Finding the Fourth Proportional to 896,728,770.36, 1,237,332,447.54 and 520,299,062.46

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Solution

The fourth proportional to 896,728,770.36, 1,237,332,447.54 and 520,299,062.46 is: 717,923,784.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,728,770.36 : 1,237,332,447.54 = 520,299,062.46 : x
  2. Step 2: Convert to fraction form
    896,728,770.36/1,237,332,447.54 = 520,299,062.46/x
  3. Step 3: Cross multiply
    896,728,770.36x = 1,237,332,447.54 × 520,299,062.46
  4. Step 4: Simplify right side
    896,728,770.36x = 643,782,912,406,399,104
  5. Step 5: Solve for x
    x = 643,782,912,406,399,104/896,728,770.36
  6. Step 6: Final answer
    x = 717,923,784.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.