Home / 144,440,280.03-199,327,972.80-78,360,778.29

Finding the Fourth Proportional to 144,440,280.03, 199,327,972.80 and 78,360,778.29

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Solution

The fourth proportional to 144,440,280.03, 199,327,972.80 and 78,360,778.29 is: 108,138,083.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,440,280.03 : 199,327,972.80 = 78,360,778.29 : x
  2. Step 2: Convert to fraction form
    144,440,280.03/199,327,972.80 = 78,360,778.29/x
  3. Step 3: Cross multiply
    144,440,280.03x = 199,327,972.80 × 78,360,778.29
  4. Step 4: Simplify right side
    144,440,280.03x = 15,619,495,083,575,952
  5. Step 5: Solve for x
    x = 15,619,495,083,575,952/144,440,280.03
  6. Step 6: Final answer
    x = 108,138,083.64

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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.