Home / 13,553,249.12-18,703,751.28-7,441,624.16

Finding the Fourth Proportional to 13,553,249.12, 18,703,751.28 and 7,441,624.16

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Solution

The fourth proportional to 13,553,249.12, 18,703,751.28 and 7,441,624.16 is: 10,269,588.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553,249.12 : 18,703,751.28 = 7,441,624.16 : x
  2. Step 2: Convert to fraction form
    13,553,249.12/18,703,751.28 = 7,441,624.16/x
  3. Step 3: Cross multiply
    13,553,249.12x = 18,703,751.28 × 7,441,624.16
  4. Step 4: Simplify right side
    13,553,249.12x = 139,186,287,407,878.94
  5. Step 5: Solve for x
    x = 139,186,287,407,878.94/13,553,249.12
  6. Step 6: Final answer
    x = 10,269,588.21

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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.