Home / 121,040,530.03-167,035,970.32-77,580,466.03

Finding the Fourth Proportional to 121,040,530.03, 167,035,970.32 and 77,580,466.03

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Solution

The fourth proportional to 121,040,530.03, 167,035,970.32 and 77,580,466.03 is: 107,061,068.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,040,530.03 : 167,035,970.32 = 77,580,466.03 : x
  2. Step 2: Convert to fraction form
    121,040,530.03/167,035,970.32 = 77,580,466.03/x
  3. Step 3: Cross multiply
    121,040,530.03x = 167,035,970.32 × 77,580,466.03
  4. Step 4: Simplify right side
    121,040,530.03x = 12,958,728,421,650,470
  5. Step 5: Solve for x
    x = 12,958,728,421,650,470/121,040,530.03
  6. Step 6: Final answer
    x = 107,061,068.04

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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.