Home / 121,717,798.35-167,917,779.76-80,522,066.67

Finding the Fourth Proportional to 121,717,798.35, 167,917,779.76 and 80,522,066.67

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Solution

The fourth proportional to 121,717,798.35, 167,917,779.76 and 80,522,066.67 is: 111,085,534.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,717,798.35 : 167,917,779.76 = 80,522,066.67 : x
  2. Step 2: Convert to fraction form
    121,717,798.35/167,917,779.76 = 80,522,066.67/x
  3. Step 3: Cross multiply
    121,717,798.35x = 167,917,779.76 × 80,522,066.67
  4. Step 4: Simplify right side
    121,717,798.35x = 13,521,086,656,913,096
  5. Step 5: Solve for x
    x = 13,521,086,656,913,096/121,717,798.35
  6. Step 6: Final answer
    x = 111,085,534.25

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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.