Home / 1,407,934,900.80-2,111,902,351.20-1,312,383,412.80

Finding the Fourth Proportional to 1,407,934,900.80, 2,111,902,351.20 and 1,312,383,412.80

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Solution

The fourth proportional to 1,407,934,900.80, 2,111,902,351.20 and 1,312,383,412.80 is: 1,968,575,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,934,900.80 : 2,111,902,351.20 = 1,312,383,412.80 : x
  2. Step 2: Convert to fraction form
    1,407,934,900.80/2,111,902,351.20 = 1,312,383,412.80/x
  3. Step 3: Cross multiply
    1,407,934,900.80x = 2,111,902,351.20 × 1,312,383,412.80
  4. Step 4: Simplify right side
    1,407,934,900.80x = 2,771,625,615,168,200,192
  5. Step 5: Solve for x
    x = 2,771,625,615,168,200,192/1,407,934,900.80
  6. Step 6: Final answer
    x = 1,968,575,119.20

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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.