Home / 528,656,544.89-729,503,260.54-305,652,534.36

Finding the Fourth Proportional to 528,656,544.89, 729,503,260.54 and 305,652,534.36

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Solution

The fourth proportional to 528,656,544.89, 729,503,260.54 and 305,652,534.36 is: 421,775,768.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,656,544.89 : 729,503,260.54 = 305,652,534.36 : x
  2. Step 2: Convert to fraction form
    528,656,544.89/729,503,260.54 = 305,652,534.36/x
  3. Step 3: Cross multiply
    528,656,544.89x = 729,503,260.54 × 305,652,534.36
  4. Step 4: Simplify right side
    528,656,544.89x = 222,974,520,408,716,000
  5. Step 5: Solve for x
    x = 222,974,520,408,716,000/528,656,544.89
  6. Step 6: Final answer
    x = 421,775,768.34

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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.