Home / 13,103,861.81-18,084,674.52-7,878,572.06

Finding the Fourth Proportional to 13,103,861.81, 18,084,674.52 and 7,878,572.06

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Solution

The fourth proportional to 13,103,861.81, 18,084,674.52 and 7,878,572.06 is: 10,873,238.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103,861.81 : 18,084,674.52 = 7,878,572.06 : x
  2. Step 2: Convert to fraction form
    13,103,861.81/18,084,674.52 = 7,878,572.06/x
  3. Step 3: Cross multiply
    13,103,861.81x = 18,084,674.52 × 7,878,572.06
  4. Step 4: Simplify right side
    13,103,861.81x = 142,481,411,297,042.53
  5. Step 5: Solve for x
    x = 142,481,411,297,042.53/13,103,861.81
  6. Step 6: Final answer
    x = 10,873,238.24

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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.