Home / 1,408,381,781.80-2,112,562,175.10-425,806,421.80

Finding the Fourth Proportional to 1,408,381,781.80, 2,112,562,175.10 and 425,806,421.80

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Solution

The fourth proportional to 1,408,381,781.80, 2,112,562,175.10 and 425,806,421.80 is: 638,706,458.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,381,781.80 : 2,112,562,175.10 = 425,806,421.80 : x
  2. Step 2: Convert to fraction form
    1,408,381,781.80/2,112,562,175.10 = 425,806,421.80/x
  3. Step 3: Cross multiply
    1,408,381,781.80x = 2,112,562,175.10 × 425,806,421.80
  4. Step 4: Simplify right side
    1,408,381,781.80x = 899,542,540,609,356,032
  5. Step 5: Solve for x
    x = 899,542,540,609,356,032/1,408,381,781.80
  6. Step 6: Final answer
    x = 638,706,458.88

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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.