Home / 13,578,879.60-18,738,283.42-7,698,909.34

Finding the Fourth Proportional to 13,578,879.60, 18,738,283.42 and 7,698,909.34

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Solution

The fourth proportional to 13,578,879.60, 18,738,283.42 and 7,698,909.34 is: 10,624,171.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,879.60 : 18,738,283.42 = 7,698,909.34 : x
  2. Step 2: Convert to fraction form
    13,578,879.60/18,738,283.42 = 7,698,909.34/x
  3. Step 3: Cross multiply
    13,578,879.60x = 18,738,283.42 × 7,698,909.34
  4. Step 4: Simplify right side
    13,578,879.60x = 144,264,345,199,310.59
  5. Step 5: Solve for x
    x = 144,264,345,199,310.59/13,578,879.60
  6. Step 6: Final answer
    x = 10,624,171.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.