Home / 13,355,961.60-20,033,942.40-11,921,070.90

Finding the Fourth Proportional to 13,355,961.60, 20,033,942.40 and 11,921,070.90

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Solution

The fourth proportional to 13,355,961.60, 20,033,942.40 and 11,921,070.90 is: 17,881,606.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355,961.60 : 20,033,942.40 = 11,921,070.90 : x
  2. Step 2: Convert to fraction form
    13,355,961.60/20,033,942.40 = 11,921,070.90/x
  3. Step 3: Cross multiply
    13,355,961.60x = 20,033,942.40 × 11,921,070.90
  4. Step 4: Simplify right side
    13,355,961.60x = 238,826,047,756,916.16
  5. Step 5: Solve for x
    x = 238,826,047,756,916.16/13,355,961.60
  6. Step 6: Final answer
    x = 17,881,606.35

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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.