Home / 172,438,518.40-258,757,310.40-64,744,028.80

Finding the Fourth Proportional to 172,438,518.40, 258,757,310.40 and 64,744,028.80

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Solution

The fourth proportional to 172,438,518.40, 258,757,310.40 and 64,744,028.80 is: 97,153,413.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,438,518.40 : 258,757,310.40 = 64,744,028.80 : x
  2. Step 2: Convert to fraction form
    172,438,518.40/258,757,310.40 = 64,744,028.80/x
  3. Step 3: Cross multiply
    172,438,518.40x = 258,757,310.40 × 64,744,028.80
  4. Step 4: Simplify right side
    172,438,518.40x = 16,752,990,756,748,140
  5. Step 5: Solve for x
    x = 16,752,990,756,748,140/172,438,518.40
  6. Step 6: Final answer
    x = 97,153,413.94

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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.