Home / 528,526,775.22-729,202,400.34-305,427,179.22

Finding the Fourth Proportional to 528,526,775.22, 729,202,400.34 and 305,427,179.22

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Solution

The fourth proportional to 528,526,775.22, 729,202,400.34 and 305,427,179.22 is: 421,394,416.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,526,775.22 : 729,202,400.34 = 305,427,179.22 : x
  2. Step 2: Convert to fraction form
    528,526,775.22/729,202,400.34 = 305,427,179.22/x
  3. Step 3: Cross multiply
    528,526,775.22x = 729,202,400.34 × 305,427,179.22
  4. Step 4: Simplify right side
    528,526,775.22x = 222,718,232,216,299,392
  5. Step 5: Solve for x
    x = 222,718,232,216,299,392/528,526,775.22
  6. Step 6: Final answer
    x = 421,394,416.82

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1.5x scale

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.