Home / 121,360,317.89-167,522,782.84-79,547,077.79

Finding the Fourth Proportional to 121,360,317.89, 167,522,782.84 and 79,547,077.79

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Solution

The fourth proportional to 121,360,317.89, 167,522,782.84 and 79,547,077.79 is: 109,804,819.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,360,317.89 : 167,522,782.84 = 79,547,077.79 : x
  2. Step 2: Convert to fraction form
    121,360,317.89/167,522,782.84 = 79,547,077.79/x
  3. Step 3: Cross multiply
    121,360,317.89x = 167,522,782.84 × 79,547,077.79
  4. Step 4: Simplify right side
    121,360,317.89x = 13,325,947,838,170,758
  5. Step 5: Solve for x
    x = 13,325,947,838,170,758/121,360,317.89
  6. Step 6: Final answer
    x = 109,804,819.81

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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.