Home / 13,410,091.35-20,128,127.81-12,681,820.35

Finding the Fourth Proportional to 13,410,091.35, 20,128,127.81 and 12,681,820.35

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Solution

The fourth proportional to 13,410,091.35, 20,128,127.81 and 12,681,820.35 is: 19,035,015.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410,091.35 : 20,128,127.81 = 12,681,820.35 : x
  2. Step 2: Convert to fraction form
    13,410,091.35/20,128,127.81 = 12,681,820.35/x
  3. Step 3: Cross multiply
    13,410,091.35x = 20,128,127.81 × 12,681,820.35
  4. Step 4: Simplify right side
    13,410,091.35x = 255,261,300,804,849.81
  5. Step 5: Solve for x
    x = 255,261,300,804,849.81/13,410,091.35
  6. Step 6: Final answer
    x = 19,035,015.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.