Home / 19,178,959.74-28,768,689-6,399,464.46

Finding the Fourth Proportional to 19,178,959.74, 28,768,689 and 6,399,464.46

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Solution

The fourth proportional to 19,178,959.74, 28,768,689 and 6,399,464.46 is: 9,599,279.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178,959.74 : 28,768,689 = 6,399,464.46 : x
  2. Step 2: Convert to fraction form
    19,178,959.74/28,768,689 = 6,399,464.46/x
  3. Step 3: Cross multiply
    19,178,959.74x = 28,768,689 × 6,399,464.46
  4. Step 4: Simplify right side
    19,178,959.74x = 184,104,202,816,292.94
  5. Step 5: Solve for x
    x = 184,104,202,816,292.94/19,178,959.74
  6. Step 6: Final answer
    x = 9,599,279.90

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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.