Home / 172,070,581.77-258,225,075.09-68,429,165.72

Finding the Fourth Proportional to 172,070,581.77, 258,225,075.09 and 68,429,165.72

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Solution

The fourth proportional to 172,070,581.77, 258,225,075.09 and 68,429,165.72 is: 102,691,153.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,070,581.77 : 258,225,075.09 = 68,429,165.72 : x
  2. Step 2: Convert to fraction form
    172,070,581.77/258,225,075.09 = 68,429,165.72/x
  3. Step 3: Cross multiply
    172,070,581.77x = 258,225,075.09 × 68,429,165.72
  4. Step 4: Simplify right side
    172,070,581.77x = 17,670,126,455,101,930
  5. Step 5: Solve for x
    x = 17,670,126,455,101,930/172,070,581.77
  6. Step 6: Final answer
    x = 102,691,153.09

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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.