Home / 73,009,266.40-109,513,899.60-19,162,021.60

Finding the Fourth Proportional to 73,009,266.40, 109,513,899.60 and 19,162,021.60

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Solution

The fourth proportional to 73,009,266.40, 109,513,899.60 and 19,162,021.60 is: 28,743,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,009,266.40 : 109,513,899.60 = 19,162,021.60 : x
  2. Step 2: Convert to fraction form
    73,009,266.40/109,513,899.60 = 19,162,021.60/x
  3. Step 3: Cross multiply
    73,009,266.40x = 109,513,899.60 × 19,162,021.60
  4. Step 4: Simplify right side
    73,009,266.40x = 2,098,507,709,635,431.50
  5. Step 5: Solve for x
    x = 2,098,507,709,635,431.50/73,009,266.40
  6. Step 6: Final answer
    x = 28,743,032.40

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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.