Home / 265,408,478.03-398,048,849.54-81,177,544.79

Finding the Fourth Proportional to 265,408,478.03, 398,048,849.54 and 81,177,544.79

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Solution

The fourth proportional to 265,408,478.03, 398,048,849.54 and 81,177,544.79 is: 121,746,782.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,408,478.03 : 398,048,849.54 = 81,177,544.79 : x
  2. Step 2: Convert to fraction form
    265,408,478.03/398,048,849.54 = 81,177,544.79/x
  3. Step 3: Cross multiply
    265,408,478.03x = 398,048,849.54 × 81,177,544.79
  4. Step 4: Simplify right side
    265,408,478.03x = 32,312,628,313,339,392
  5. Step 5: Solve for x
    x = 32,312,628,313,339,392/265,408,478.03
  6. Step 6: Final answer
    x = 121,746,782.75

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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.