Home / 1,170,587,389.12-1,615,262,125.62-641,812,230.52

Finding the Fourth Proportional to 1,170,587,389.12, 1,615,262,125.62 and 641,812,230.52

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Solution

The fourth proportional to 1,170,587,389.12, 1,615,262,125.62 and 641,812,230.52 is: 885,619,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,587,389.12 : 1,615,262,125.62 = 641,812,230.52 : x
  2. Step 2: Convert to fraction form
    1,170,587,389.12/1,615,262,125.62 = 641,812,230.52/x
  3. Step 3: Cross multiply
    1,170,587,389.12x = 1,615,262,125.62 × 641,812,230.52
  4. Step 4: Simplify right side
    1,170,587,389.12x = 1,036,694,987,718,648,576
  5. Step 5: Solve for x
    x = 1,036,694,987,718,648,576/1,170,587,389.12
  6. Step 6: Final answer
    x = 885,619,473.91

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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.