Home / 121,360,318.36-167,522,783.49-79,547,078.25

Finding the Fourth Proportional to 121,360,318.36, 167,522,783.49 and 79,547,078.25

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Solution

The fourth proportional to 121,360,318.36, 167,522,783.49 and 79,547,078.25 is: 109,804,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,360,318.36 : 167,522,783.49 = 79,547,078.25 : x
  2. Step 2: Convert to fraction form
    121,360,318.36/167,522,783.49 = 79,547,078.25/x
  3. Step 3: Cross multiply
    121,360,318.36x = 167,522,783.49 × 79,547,078.25
  4. Step 4: Simplify right side
    121,360,318.36x = 13,325,947,966,936,838
  5. Step 5: Solve for x
    x = 13,325,947,966,936,838/121,360,318.36
  6. Step 6: Final answer
    x = 109,804,820.45

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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.