Home / 1,328,664,370.80-1,992,996,556.20-346,089,010.80

Finding the Fourth Proportional to 1,328,664,370.80, 1,992,996,556.20 and 346,089,010.80

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Solution

The fourth proportional to 1,328,664,370.80, 1,992,996,556.20 and 346,089,010.80 is: 519,133,516.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,664,370.80 : 1,992,996,556.20 = 346,089,010.80 : x
  2. Step 2: Convert to fraction form
    1,328,664,370.80/1,992,996,556.20 = 346,089,010.80/x
  3. Step 3: Cross multiply
    1,328,664,370.80x = 1,992,996,556.20 × 346,089,010.80
  4. Step 4: Simplify right side
    1,328,664,370.80x = 689,754,206,663,064,704
  5. Step 5: Solve for x
    x = 689,754,206,663,064,704/1,328,664,370.80
  6. Step 6: Final answer
    x = 519,133,516.20

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Double scale
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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.