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Finding the Fourth Proportional to 172,562,709.30, 258,844,063.95 and 153,751,010.10

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Solution

The fourth proportional to 172,562,709.30, 258,844,063.95 and 153,751,010.10 is: 230,626,515.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,562,709.30 : 258,844,063.95 = 153,751,010.10 : x
  2. Step 2: Convert to fraction form
    172,562,709.30/258,844,063.95 = 153,751,010.10/x
  3. Step 3: Cross multiply
    172,562,709.30x = 258,844,063.95 × 153,751,010.10
  4. Step 4: Simplify right side
    172,562,709.30x = 39,797,536,290,701,496
  5. Step 5: Solve for x
    x = 39,797,536,290,701,496/172,562,709.30
  6. Step 6: Final answer
    x = 230,626,515.15

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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.