Home / 138,312,163.49-190,871,380.73-75,589,547.81

Finding the Fourth Proportional to 138,312,163.49, 190,871,380.73 and 75,589,547.81

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Solution

The fourth proportional to 138,312,163.49, 190,871,380.73 and 75,589,547.81 is: 104,313,901.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,312,163.49 : 190,871,380.73 = 75,589,547.81 : x
  2. Step 2: Convert to fraction form
    138,312,163.49/190,871,380.73 = 75,589,547.81/x
  3. Step 3: Cross multiply
    138,312,163.49x = 190,871,380.73 × 75,589,547.81
  4. Step 4: Simplify right side
    138,312,163.49x = 14,427,881,358,485,666
  5. Step 5: Solve for x
    x = 14,427,881,358,485,666/138,312,163.49
  6. Step 6: Final answer
    x = 104,313,901.21

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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.