Home / 131,296,970.88-181,193,440.32-72,563,443.20

Finding the Fourth Proportional to 131,296,970.88, 181,193,440.32 and 72,563,443.20

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Solution

The fourth proportional to 131,296,970.88, 181,193,440.32 and 72,563,443.20 is: 100,139,552.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,296,970.88 : 181,193,440.32 = 72,563,443.20 : x
  2. Step 2: Convert to fraction form
    131,296,970.88/181,193,440.32 = 72,563,443.20/x
  3. Step 3: Cross multiply
    131,296,970.88x = 181,193,440.32 × 72,563,443.20
  4. Step 4: Simplify right side
    131,296,970.88x = 13,148,019,914,872,910
  5. Step 5: Solve for x
    x = 13,148,019,914,872,910/131,296,970.88
  6. Step 6: Final answer
    x = 100,139,552.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.