Home / 13,880,189.04-19,154,658.60-7,768,617.36

Finding the Fourth Proportional to 13,880,189.04, 19,154,658.60 and 7,768,617.36

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Solution

The fourth proportional to 13,880,189.04, 19,154,658.60 and 7,768,617.36 is: 10,720,690.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880,189.04 : 19,154,658.60 = 7,768,617.36 : x
  2. Step 2: Convert to fraction form
    13,880,189.04/19,154,658.60 = 7,768,617.36/x
  3. Step 3: Cross multiply
    13,880,189.04x = 19,154,658.60 × 7,768,617.36
  4. Step 4: Simplify right side
    13,880,189.04x = 148,805,213,324,833.31
  5. Step 5: Solve for x
    x = 148,805,213,324,833.31/13,880,189.04
  6. Step 6: Final answer
    x = 10,720,690.68

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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.