Home / 377,499,780.03-520,965,859.05-210,236,040.81

Finding the Fourth Proportional to 377,499,780.03, 520,965,859.05 and 210,236,040.81

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Solution

The fourth proportional to 377,499,780.03, 520,965,859.05 and 210,236,040.81 is: 290,134,737.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,499,780.03 : 520,965,859.05 = 210,236,040.81 : x
  2. Step 2: Convert to fraction form
    377,499,780.03/520,965,859.05 = 210,236,040.81/x
  3. Step 3: Cross multiply
    377,499,780.03x = 520,965,859.05 × 210,236,040.81
  4. Step 4: Simplify right side
    377,499,780.03x = 109,525,799,603,852,512
  5. Step 5: Solve for x
    x = 109,525,799,603,852,512/377,499,780.03
  6. Step 6: Final answer
    x = 290,134,737.55

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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.