Home / 18,398,903.70-25,390,655.03-10,139,262.34

Finding the Fourth Proportional to 18,398,903.70, 25,390,655.03 and 10,139,262.34

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Solution

The fourth proportional to 18,398,903.70, 25,390,655.03 and 10,139,262.34 is: 13,992,274.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398,903.70 : 25,390,655.03 = 10,139,262.34 : x
  2. Step 2: Convert to fraction form
    18,398,903.70/25,390,655.03 = 10,139,262.34/x
  3. Step 3: Cross multiply
    18,398,903.70x = 25,390,655.03 × 10,139,262.34
  4. Step 4: Simplify right side
    18,398,903.70x = 257,442,512,295,482.09
  5. Step 5: Solve for x
    x = 257,442,512,295,482.09/18,398,903.70
  6. Step 6: Final answer
    x = 13,992,274.57

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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.