Home / 172,408,521.60-258,612,782.40-163,905,465.60

Finding the Fourth Proportional to 172,408,521.60, 258,612,782.40 and 163,905,465.60

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Solution

The fourth proportional to 172,408,521.60, 258,612,782.40 and 163,905,465.60 is: 245,858,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,408,521.60 : 258,612,782.40 = 163,905,465.60 : x
  2. Step 2: Convert to fraction form
    172,408,521.60/258,612,782.40 = 163,905,465.60/x
  3. Step 3: Cross multiply
    172,408,521.60x = 258,612,782.40 × 163,905,465.60
  4. Step 4: Simplify right side
    172,408,521.60x = 42,388,048,509,383,488
  5. Step 5: Solve for x
    x = 42,388,048,509,383,488/172,408,521.60
  6. Step 6: Final answer
    x = 245,858,198.40

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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.