Home / 870,912,074.70-1,306,368,112.05-386,237,882.70

Finding the Fourth Proportional to 870,912,074.70, 1,306,368,112.05 and 386,237,882.70

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Solution

The fourth proportional to 870,912,074.70, 1,306,368,112.05 and 386,237,882.70 is: 579,356,824.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,912,074.70 : 1,306,368,112.05 = 386,237,882.70 : x
  2. Step 2: Convert to fraction form
    870,912,074.70/1,306,368,112.05 = 386,237,882.70/x
  3. Step 3: Cross multiply
    870,912,074.70x = 1,306,368,112.05 × 386,237,882.70
  4. Step 4: Simplify right side
    870,912,074.70x = 504,568,853,624,988,352
  5. Step 5: Solve for x
    x = 504,568,853,624,988,352/870,912,074.70
  6. Step 6: Final answer
    x = 579,356,824.05

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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.