Home / 70,627,730.21-105,943,607.40-19,509,754.49

Finding the Fourth Proportional to 70,627,730.21, 105,943,607.40 and 19,509,754.49

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Solution

The fourth proportional to 70,627,730.21, 105,943,607.40 and 19,509,754.49 is: 29,265,187.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,627,730.21 : 105,943,607.40 = 19,509,754.49 : x
  2. Step 2: Convert to fraction form
    70,627,730.21/105,943,607.40 = 19,509,754.49/x
  3. Step 3: Cross multiply
    70,627,730.21x = 105,943,607.40 × 19,509,754.49
  4. Step 4: Simplify right side
    70,627,730.21x = 2,066,933,769,629,229.25
  5. Step 5: Solve for x
    x = 2,066,933,769,629,229.25/70,627,730.21
  6. Step 6: Final answer
    x = 29,265,187.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.