Home / 13,209,268.96-18,228,923.16-7,407,926.14

Finding the Fourth Proportional to 13,209,268.96, 18,228,923.16 and 7,407,926.14

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Solution

The fourth proportional to 13,209,268.96, 18,228,923.16 and 7,407,926.14 is: 10,223,012.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209,268.96 : 18,228,923.16 = 7,407,926.14 : x
  2. Step 2: Convert to fraction form
    13,209,268.96/18,228,923.16 = 7,407,926.14/x
  3. Step 3: Cross multiply
    13,209,268.96x = 18,228,923.16 × 7,407,926.14
  4. Step 4: Simplify right side
    13,209,268.96x = 135,038,516,381,015.39
  5. Step 5: Solve for x
    x = 135,038,516,381,015.39/13,209,268.96
  6. Step 6: Final answer
    x = 10,223,012.10

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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.