Home / 208,658,595.12-312,988,972.41-122,336,467.44

Finding the Fourth Proportional to 208,658,595.12, 312,988,972.41 and 122,336,467.44

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Solution

The fourth proportional to 208,658,595.12, 312,988,972.41 and 122,336,467.44 is: 183,505,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,658,595.12 : 312,988,972.41 = 122,336,467.44 : x
  2. Step 2: Convert to fraction form
    208,658,595.12/312,988,972.41 = 122,336,467.44/x
  3. Step 3: Cross multiply
    208,658,595.12x = 312,988,972.41 × 122,336,467.44
  4. Step 4: Simplify right side
    208,658,595.12x = 38,289,965,232,315,024
  5. Step 5: Solve for x
    x = 38,289,965,232,315,024/208,658,595.12
  6. Step 6: Final answer
    x = 183,505,334.21

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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.