Home / 121,360,320.42-167,522,786.33-79,547,080.32

Finding the Fourth Proportional to 121,360,320.42, 167,522,786.33 and 79,547,080.32

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Solution

The fourth proportional to 121,360,320.42, 167,522,786.33 and 79,547,080.32 is: 109,804,823.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,360,320.42 : 167,522,786.33 = 79,547,080.32 : x
  2. Step 2: Convert to fraction form
    121,360,320.42/167,522,786.33 = 79,547,080.32/x
  3. Step 3: Cross multiply
    121,360,320.42x = 167,522,786.33 × 79,547,080.32
  4. Step 4: Simplify right side
    121,360,320.42x = 13,325,948,539,224,970
  5. Step 5: Solve for x
    x = 13,325,948,539,224,970/121,360,320.42
  6. Step 6: Final answer
    x = 109,804,823.30

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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.