Home / 13,671,280.19-18,865,993.37-7,559,499.71

Finding the Fourth Proportional to 13,671,280.19, 18,865,993.37 and 7,559,499.71

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Solution

The fourth proportional to 13,671,280.19, 18,865,993.37 and 7,559,499.71 is: 10,431,903.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671,280.19 : 18,865,993.37 = 7,559,499.71 : x
  2. Step 2: Convert to fraction form
    13,671,280.19/18,865,993.37 = 7,559,499.71/x
  3. Step 3: Cross multiply
    13,671,280.19x = 18,865,993.37 × 7,559,499.71
  4. Step 4: Simplify right side
    13,671,280.19x = 142,617,471,277,249.44
  5. Step 5: Solve for x
    x = 142,617,471,277,249.44/13,671,280.19
  6. Step 6: Final answer
    x = 10,431,903.18

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Double scale
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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.