Home / 143,272,806.60-197,717,138.82-81,396,539.40

Finding the Fourth Proportional to 143,272,806.60, 197,717,138.82 and 81,396,539.40

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Solution

The fourth proportional to 143,272,806.60, 197,717,138.82 and 81,396,539.40 is: 112,327,602.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,272,806.60 : 197,717,138.82 = 81,396,539.40 : x
  2. Step 2: Convert to fraction form
    143,272,806.60/197,717,138.82 = 81,396,539.40/x
  3. Step 3: Cross multiply
    143,272,806.60x = 197,717,138.82 × 81,396,539.40
  4. Step 4: Simplify right side
    143,272,806.60x = 16,093,490,880,017,400
  5. Step 5: Solve for x
    x = 16,093,490,880,017,400/143,272,806.60
  6. Step 6: Final answer
    x = 112,327,602.58

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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.