Home / 312,039,386.70-468,059,080.05-158,984,378.70

Finding the Fourth Proportional to 312,039,386.70, 468,059,080.05 and 158,984,378.70

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Solution

The fourth proportional to 312,039,386.70, 468,059,080.05 and 158,984,378.70 is: 238,476,568.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,039,386.70 : 468,059,080.05 = 158,984,378.70 : x
  2. Step 2: Convert to fraction form
    312,039,386.70/468,059,080.05 = 158,984,378.70/x
  3. Step 3: Cross multiply
    312,039,386.70x = 468,059,080.05 × 158,984,378.70
  4. Step 4: Simplify right side
    312,039,386.70x = 74,414,082,036,642,816
  5. Step 5: Solve for x
    x = 74,414,082,036,642,816/312,039,386.70
  6. Step 6: Final answer
    x = 238,476,568.05

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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.