Home / 12,782,405.80-19,184,495.10-5,214,802.60

Finding the Fourth Proportional to 12,782,405.80, 19,184,495.10 and 5,214,802.60

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Solution

The fourth proportional to 12,782,405.80, 19,184,495.10 and 5,214,802.60 is: 7,826,645.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,782,405.80 : 19,184,495.10 = 5,214,802.60 : x
  2. Step 2: Convert to fraction form
    12,782,405.80/19,184,495.10 = 5,214,802.60/x
  3. Step 3: Cross multiply
    12,782,405.80x = 19,184,495.10 × 5,214,802.60
  4. Step 4: Simplify right side
    12,782,405.80x = 100,043,354,927,167.27
  5. Step 5: Solve for x
    x = 100,043,354,927,167.27/12,782,405.80
  6. Step 6: Final answer
    x = 7,826,645.19

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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.