Home / 121,360,318.64-167,522,783.87-79,547,078.53

Finding the Fourth Proportional to 121,360,318.64, 167,522,783.87 and 79,547,078.53

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Solution

The fourth proportional to 121,360,318.64, 167,522,783.87 and 79,547,078.53 is: 109,804,820.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,360,318.64 : 167,522,783.87 = 79,547,078.53 : x
  2. Step 2: Convert to fraction form
    121,360,318.64/167,522,783.87 = 79,547,078.53/x
  3. Step 3: Cross multiply
    121,360,318.64x = 167,522,783.87 × 79,547,078.53
  4. Step 4: Simplify right side
    121,360,318.64x = 13,325,948,044,071,108
  5. Step 5: Solve for x
    x = 13,325,948,044,071,108/121,360,318.64
  6. Step 6: Final answer
    x = 109,804,820.83

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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.