Home / 1,408,046,656.80-2,112,059,487.60-425,471,296.80

Finding the Fourth Proportional to 1,408,046,656.80, 2,112,059,487.60 and 425,471,296.80

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Solution

The fourth proportional to 1,408,046,656.80, 2,112,059,487.60 and 425,471,296.80 is: 638,203,773.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,046,656.80 : 2,112,059,487.60 = 425,471,296.80 : x
  2. Step 2: Convert to fraction form
    1,408,046,656.80/2,112,059,487.60 = 425,471,296.80/x
  3. Step 3: Cross multiply
    1,408,046,656.80x = 2,112,059,487.60 × 425,471,296.80
  4. Step 4: Simplify right side
    1,408,046,656.80x = 898,620,689,107,915,520
  5. Step 5: Solve for x
    x = 898,620,689,107,915,520/1,408,046,656.80
  6. Step 6: Final answer
    x = 638,203,773.13

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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.