Home / 13,412,946-18,509,867.64-7,301,420.40

Finding the Fourth Proportional to 13,412,946, 18,509,867.64 and 7,301,420.40

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Solution

The fourth proportional to 13,412,946, 18,509,867.64 and 7,301,420.40 is: 10,075,961.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412,946 : 18,509,867.64 = 7,301,420.40 : x
  2. Step 2: Convert to fraction form
    13,412,946/18,509,867.64 = 7,301,420.40/x
  3. Step 3: Cross multiply
    13,412,946x = 18,509,867.64 × 7,301,420.40
  4. Step 4: Simplify right side
    13,412,946x = 135,148,325,187,995.88
  5. Step 5: Solve for x
    x = 135,148,325,187,995.88/13,412,946
  6. Step 6: Final answer
    x = 10,075,961.33

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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.