Home / 13,148,605.40-19,722,908.10-7,409,042.60

Finding the Fourth Proportional to 13,148,605.40, 19,722,908.10 and 7,409,042.60

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Solution

The fourth proportional to 13,148,605.40, 19,722,908.10 and 7,409,042.60 is: 11,113,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148,605.40 : 19,722,908.10 = 7,409,042.60 : x
  2. Step 2: Convert to fraction form
    13,148,605.40/19,722,908.10 = 7,409,042.60/x
  3. Step 3: Cross multiply
    13,148,605.40x = 19,722,908.10 × 7,409,042.60
  4. Step 4: Simplify right side
    13,148,605.40x = 146,127,866,308,785.06
  5. Step 5: Solve for x
    x = 146,127,866,308,785.06/13,148,605.40
  6. Step 6: Final answer
    x = 11,113,563.90

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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.