Home / 13,622,155.05-18,798,720.57-7,427,151.02

Finding the Fourth Proportional to 13,622,155.05, 18,798,720.57 and 7,427,151.02

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Solution

The fourth proportional to 13,622,155.05, 18,798,720.57 and 7,427,151.02 is: 10,249,548.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622,155.05 : 18,798,720.57 = 7,427,151.02 : x
  2. Step 2: Convert to fraction form
    13,622,155.05/18,798,720.57 = 7,427,151.02/x
  3. Step 3: Cross multiply
    13,622,155.05x = 18,798,720.57 × 7,427,151.02
  4. Step 4: Simplify right side
    13,622,155.05x = 139,620,936,703,167.28
  5. Step 5: Solve for x
    x = 139,620,936,703,167.28/13,622,155.05
  6. Step 6: Final answer
    x = 10,249,548.34

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1.5x scale

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.