Home / 13,881,828.60-20,828,647.80-6,689,660.40

Finding the Fourth Proportional to 13,881,828.60, 20,828,647.80 and 6,689,660.40

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Solution

The fourth proportional to 13,881,828.60, 20,828,647.80 and 6,689,660.40 is: 10,037,336.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881,828.60 : 20,828,647.80 = 6,689,660.40 : x
  2. Step 2: Convert to fraction form
    13,881,828.60/20,828,647.80 = 6,689,660.40/x
  3. Step 3: Cross multiply
    13,881,828.60x = 20,828,647.80 × 6,689,660.40
  4. Step 4: Simplify right side
    13,881,828.60x = 139,336,580,373,207.12
  5. Step 5: Solve for x
    x = 139,336,580,373,207.12/13,881,828.60
  6. Step 6: Final answer
    x = 10,037,336.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.