Home / 13,723,885.56-18,938,901.42-7,843,421.64

Finding the Fourth Proportional to 13,723,885.56, 18,938,901.42 and 7,843,421.64

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Solution

The fourth proportional to 13,723,885.56, 18,938,901.42 and 7,843,421.64 is: 10,823,887.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723,885.56 : 18,938,901.42 = 7,843,421.64 : x
  2. Step 2: Convert to fraction form
    13,723,885.56/18,938,901.42 = 7,843,421.64/x
  3. Step 3: Cross multiply
    13,723,885.56x = 18,938,901.42 × 7,843,421.64
  4. Step 4: Simplify right side
    13,723,885.56x = 148,545,789,235,454.75
  5. Step 5: Solve for x
    x = 148,545,789,235,454.75/13,723,885.56
  6. Step 6: Final answer
    x = 10,823,887.20

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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.