Home / 1,112,060,749.50-1,668,189,166.62-412,560,988.38

Finding the Fourth Proportional to 1,112,060,749.50, 1,668,189,166.62 and 412,560,988.38

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Solution

The fourth proportional to 1,112,060,749.50, 1,668,189,166.62 and 412,560,988.38 is: 618,877,855.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,060,749.50 : 1,668,189,166.62 = 412,560,988.38 : x
  2. Step 2: Convert to fraction form
    1,112,060,749.50/1,668,189,166.62 = 412,560,988.38/x
  3. Step 3: Cross multiply
    1,112,060,749.50x = 1,668,189,166.62 × 412,560,988.38
  4. Step 4: Simplify right side
    1,112,060,749.50x = 688,229,771,385,555,712
  5. Step 5: Solve for x
    x = 688,229,771,385,555,712/1,112,060,749.50
  6. Step 6: Final answer
    x = 618,877,855.09

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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.