Home / 13,554,475.92-18,705,199.32-7,443,291.60

Finding the Fourth Proportional to 13,554,475.92, 18,705,199.32 and 7,443,291.60

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Solution

The fourth proportional to 13,554,475.92, 18,705,199.32 and 7,443,291.60 is: 10,271,754.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554,475.92 : 18,705,199.32 = 7,443,291.60 : x
  2. Step 2: Convert to fraction form
    13,554,475.92/18,705,199.32 = 7,443,291.60/x
  3. Step 3: Cross multiply
    13,554,475.92x = 18,705,199.32 × 7,443,291.60
  4. Step 4: Simplify right side
    13,554,475.92x = 139,228,252,974,881.70
  5. Step 5: Solve for x
    x = 139,228,252,974,881.70/13,554,475.92
  6. Step 6: Final answer
    x = 10,271,754.79

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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.