Home / 19,208,135.09-28,810,080.61-4,831,208.57

Finding the Fourth Proportional to 19,208,135.09, 28,810,080.61 and 4,831,208.57

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Solution

The fourth proportional to 19,208,135.09, 28,810,080.61 and 4,831,208.57 is: 7,246,279.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,208,135.09 : 28,810,080.61 = 4,831,208.57 : x
  2. Step 2: Convert to fraction form
    19,208,135.09/28,810,080.61 = 4,831,208.57/x
  3. Step 3: Cross multiply
    19,208,135.09x = 28,810,080.61 × 4,831,208.57
  4. Step 4: Simplify right side
    19,208,135.09x = 139,187,508,405,370.02
  5. Step 5: Solve for x
    x = 139,187,508,405,370.02/19,208,135.09
  6. Step 6: Final answer
    x = 7,246,279.13

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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.