Home / 13,128,899.07-19,679,880.34-5,039,696.37

Finding the Fourth Proportional to 13,128,899.07, 19,679,880.34 and 5,039,696.37

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Solution

The fourth proportional to 13,128,899.07, 19,679,880.34 and 5,039,696.37 is: 7,554,374.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128,899.07 : 19,679,880.34 = 5,039,696.37 : x
  2. Step 2: Convert to fraction form
    13,128,899.07/19,679,880.34 = 5,039,696.37/x
  3. Step 3: Cross multiply
    13,128,899.07x = 19,679,880.34 × 5,039,696.37
  4. Step 4: Simplify right side
    13,128,899.07x = 99,180,621,563,283.25
  5. Step 5: Solve for x
    x = 99,180,621,563,283.25/13,128,899.07
  6. Step 6: Final answer
    x = 7,554,374.59

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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.