Home / 13,288,817.80-19,860,399.05-9,702,137.80

Finding the Fourth Proportional to 13,288,817.80, 19,860,399.05 and 9,702,137.80

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Solution

The fourth proportional to 13,288,817.80, 19,860,399.05 and 9,702,137.80 is: 14,500,035.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288,817.80 : 19,860,399.05 = 9,702,137.80 : x
  2. Step 2: Convert to fraction form
    13,288,817.80/19,860,399.05 = 9,702,137.80/x
  3. Step 3: Cross multiply
    13,288,817.80x = 19,860,399.05 × 9,702,137.80
  4. Step 4: Simplify right side
    13,288,817.80x = 192,688,328,346,089.12
  5. Step 5: Solve for x
    x = 192,688,328,346,089.12/13,288,817.80
  6. Step 6: Final answer
    x = 14,500,035.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.