Home / 172,631,108.55-258,521,510.03-81,648,409.35

Finding the Fourth Proportional to 172,631,108.55, 258,521,510.03 and 81,648,409.35

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Solution

The fourth proportional to 172,631,108.55, 258,521,510.03 and 81,648,409.35 is: 122,271,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,631,108.55 : 258,521,510.03 = 81,648,409.35 : x
  2. Step 2: Convert to fraction form
    172,631,108.55/258,521,510.03 = 81,648,409.35/x
  3. Step 3: Cross multiply
    172,631,108.55x = 258,521,510.03 × 81,648,409.35
  4. Step 4: Simplify right side
    172,631,108.55x = 21,107,870,076,301,328
  5. Step 5: Solve for x
    x = 21,107,870,076,301,328/172,631,108.55
  6. Step 6: Final answer
    x = 122,271,531.79

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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.