Home / 13,684,477.85-18,884,629.46-7,405,005.21

Finding the Fourth Proportional to 13,684,477.85, 18,884,629.46 and 7,405,005.21

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Solution

The fourth proportional to 13,684,477.85, 18,884,629.46 and 7,405,005.21 is: 10,218,934.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684,477.85 : 18,884,629.46 = 7,405,005.21 : x
  2. Step 2: Convert to fraction form
    13,684,477.85/18,884,629.46 = 7,405,005.21/x
  3. Step 3: Cross multiply
    13,684,477.85x = 18,884,629.46 × 7,405,005.21
  4. Step 4: Simplify right side
    13,684,477.85x = 139,840,779,487,914.62
  5. Step 5: Solve for x
    x = 139,840,779,487,914.62/13,684,477.85
  6. Step 6: Final answer
    x = 10,218,934.26

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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.