Home / 30,147,307.82-45,221,241.60-8,581,908.72

Finding the Fourth Proportional to 30,147,307.82, 45,221,241.60 and 8,581,908.72

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Solution

The fourth proportional to 30,147,307.82, 45,221,241.60 and 8,581,908.72 is: 12,872,942.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,147,307.82 : 45,221,241.60 = 8,581,908.72 : x
  2. Step 2: Convert to fraction form
    30,147,307.82/45,221,241.60 = 8,581,908.72/x
  3. Step 3: Cross multiply
    30,147,307.82x = 45,221,241.60 × 8,581,908.72
  4. Step 4: Simplify right side
    30,147,307.82x = 388,084,567,616,266.81
  5. Step 5: Solve for x
    x = 388,084,567,616,266.81/30,147,307.82
  6. Step 6: Final answer
    x = 12,872,942.75

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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.