Home / 1,275,508,923.45-1,913,263,409.76-306,160,539.45

Finding the Fourth Proportional to 1,275,508,923.45, 1,913,263,409.76 and 306,160,539.45

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Solution

The fourth proportional to 1,275,508,923.45, 1,913,263,409.76 and 306,160,539.45 is: 459,240,815.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,508,923.45 : 1,913,263,409.76 = 306,160,539.45 : x
  2. Step 2: Convert to fraction form
    1,275,508,923.45/1,913,263,409.76 = 306,160,539.45/x
  3. Step 3: Cross multiply
    1,275,508,923.45x = 1,913,263,409.76 × 306,160,539.45
  4. Step 4: Simplify right side
    1,275,508,923.45x = 585,765,757,642,067,968
  5. Step 5: Solve for x
    x = 585,765,757,642,067,968/1,275,508,923.45
  6. Step 6: Final answer
    x = 459,240,815.08

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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.