Home / 13,684,479.34-18,884,631.53-7,405,006.72

Finding the Fourth Proportional to 13,684,479.34, 18,884,631.53 and 7,405,006.72

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Solution

The fourth proportional to 13,684,479.34, 18,884,631.53 and 7,405,006.72 is: 10,218,936.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684,479.34 : 18,884,631.53 = 7,405,006.72 : x
  2. Step 2: Convert to fraction form
    13,684,479.34/18,884,631.53 = 7,405,006.72/x
  3. Step 3: Cross multiply
    13,684,479.34x = 18,884,631.53 × 7,405,006.72
  4. Step 4: Simplify right side
    13,684,479.34x = 139,840,823,355,674.81
  5. Step 5: Solve for x
    x = 139,840,823,355,674.81/13,684,479.34
  6. Step 6: Final answer
    x = 10,218,936.35

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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.