Home / 172,173,959.74-258,261,126.67-42,781,570.34

Finding the Fourth Proportional to 172,173,959.74, 258,261,126.67 and 42,781,570.34

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Solution

The fourth proportional to 172,173,959.74, 258,261,126.67 and 42,781,570.34 is: 64,172,401.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,173,959.74 : 258,261,126.67 = 42,781,570.34 : x
  2. Step 2: Convert to fraction form
    172,173,959.74/258,261,126.67 = 42,781,570.34/x
  3. Step 3: Cross multiply
    172,173,959.74x = 258,261,126.67 × 42,781,570.34
  4. Step 4: Simplify right side
    172,173,959.74x = 11,048,816,555,481,998
  5. Step 5: Solve for x
    x = 11,048,816,555,481,998/172,173,959.74
  6. Step 6: Final answer
    x = 64,172,401.98

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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.