Home / 1,240,738,886.52-1,712,214,489.42-683,820,604.44

Finding the Fourth Proportional to 1,240,738,886.52, 1,712,214,489.42 and 683,820,604.44

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Solution

The fourth proportional to 1,240,738,886.52, 1,712,214,489.42 and 683,820,604.44 is: 943,669,582.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,738,886.52 : 1,712,214,489.42 = 683,820,604.44 : x
  2. Step 2: Convert to fraction form
    1,240,738,886.52/1,712,214,489.42 = 683,820,604.44/x
  3. Step 3: Cross multiply
    1,240,738,886.52x = 1,712,214,489.42 × 683,820,604.44
  4. Step 4: Simplify right side
    1,240,738,886.52x = 1,170,847,547,086,110,464
  5. Step 5: Solve for x
    x = 1,170,847,547,086,110,464/1,240,738,886.52
  6. Step 6: Final answer
    x = 943,669,582.54

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Double scale
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1.5x scale

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.