Home / 13,578,869.62-18,738,269.67-7,698,899.37

Finding the Fourth Proportional to 13,578,869.62, 18,738,269.67 and 7,698,899.37

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Solution

The fourth proportional to 13,578,869.62, 18,738,269.67 and 7,698,899.37 is: 10,624,157.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,869.62 : 18,738,269.67 = 7,698,899.37 : x
  2. Step 2: Convert to fraction form
    13,578,869.62/18,738,269.67 = 7,698,899.37/x
  3. Step 3: Cross multiply
    13,578,869.62x = 18,738,269.67 × 7,698,899.37
  4. Step 4: Simplify right side
    13,578,869.62x = 144,264,052,549,560.16
  5. Step 5: Solve for x
    x = 144,264,052,549,560.16/13,578,869.62
  6. Step 6: Final answer
    x = 10,624,157.72

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1.5x scale

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.