Home / 13,307,579.80-18,364,570.22-7,347,178.60

Finding the Fourth Proportional to 13,307,579.80, 18,364,570.22 and 7,347,178.60

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Solution

The fourth proportional to 13,307,579.80, 18,364,570.22 and 7,347,178.60 is: 10,139,167.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307,579.80 : 18,364,570.22 = 7,347,178.60 : x
  2. Step 2: Convert to fraction form
    13,307,579.80/18,364,570.22 = 7,347,178.60/x
  3. Step 3: Cross multiply
    13,307,579.80x = 18,364,570.22 × 7,347,178.60
  4. Step 4: Simplify right side
    13,307,579.80x = 134,927,777,318,581.28
  5. Step 5: Solve for x
    x = 134,927,777,318,581.28/13,307,579.80
  6. Step 6: Final answer
    x = 10,139,167.25

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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.