Home / 255,048,616.55-382,006,054.43-221,036,392.55

Finding the Fourth Proportional to 255,048,616.55, 382,006,054.43 and 221,036,392.55

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Solution

The fourth proportional to 255,048,616.55, 382,006,054.43 and 221,036,392.55 is: 331,063,313.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,048,616.55 : 382,006,054.43 = 221,036,392.55 : x
  2. Step 2: Convert to fraction form
    255,048,616.55/382,006,054.43 = 221,036,392.55/x
  3. Step 3: Cross multiply
    255,048,616.55x = 382,006,054.43 × 221,036,392.55
  4. Step 4: Simplify right side
    255,048,616.55x = 84,437,240,202,360,976
  5. Step 5: Solve for x
    x = 84,437,240,202,360,976/255,048,616.55
  6. Step 6: Final answer
    x = 331,063,313.91

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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.