Home / 13,445,995.11-18,554,727.02-7,643,971.59

Finding the Fourth Proportional to 13,445,995.11, 18,554,727.02 and 7,643,971.59

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Solution

The fourth proportional to 13,445,995.11, 18,554,727.02 and 7,643,971.59 is: 10,548,256.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445,995.11 : 18,554,727.02 = 7,643,971.59 : x
  2. Step 2: Convert to fraction form
    13,445,995.11/18,554,727.02 = 7,643,971.59/x
  3. Step 3: Cross multiply
    13,445,995.11x = 18,554,727.02 × 7,643,971.59
  4. Step 4: Simplify right side
    13,445,995.11x = 141,831,806,162,865.50
  5. Step 5: Solve for x
    x = 141,831,806,162,865.50/13,445,995.11
  6. Step 6: Final answer
    x = 10,548,256.56

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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.