Home / 1,408,381,804.80-2,112,562,209.60-425,806,444.80

Finding the Fourth Proportional to 1,408,381,804.80, 2,112,562,209.60 and 425,806,444.80

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Solution

The fourth proportional to 1,408,381,804.80, 2,112,562,209.60 and 425,806,444.80 is: 638,706,493.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,381,804.80 : 2,112,562,209.60 = 425,806,444.80 : x
  2. Step 2: Convert to fraction form
    1,408,381,804.80/2,112,562,209.60 = 425,806,444.80/x
  3. Step 3: Cross multiply
    1,408,381,804.80x = 2,112,562,209.60 × 425,806,444.80
  4. Step 4: Simplify right side
    1,408,381,804.80x = 899,542,603,888,608,384
  5. Step 5: Solve for x
    x = 899,542,603,888,608,384/1,408,381,804.80
  6. Step 6: Final answer
    x = 638,706,493.38

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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.