Home / 1,170,587,389.62-1,615,262,126.31-641,812,231.02

Finding the Fourth Proportional to 1,170,587,389.62, 1,615,262,126.31 and 641,812,231.02

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Solution

The fourth proportional to 1,170,587,389.62, 1,615,262,126.31 and 641,812,231.02 is: 885,619,474.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,587,389.62 : 1,615,262,126.31 = 641,812,231.02 : x
  2. Step 2: Convert to fraction form
    1,170,587,389.62/1,615,262,126.31 = 641,812,231.02/x
  3. Step 3: Cross multiply
    1,170,587,389.62x = 1,615,262,126.31 × 641,812,231.02
  4. Step 4: Simplify right side
    1,170,587,389.62x = 1,036,694,988,969,130,112
  5. Step 5: Solve for x
    x = 1,036,694,988,969,130,112/1,170,587,389.62
  6. Step 6: Final answer
    x = 885,619,474.60

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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.