Home / 387,627,708.80-581,143,544.16-200,681,245.12

Finding the Fourth Proportional to 387,627,708.80, 581,143,544.16 and 200,681,245.12

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Solution

The fourth proportional to 387,627,708.80, 581,143,544.16 and 200,681,245.12 is: 300,867,578.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,627,708.80 : 581,143,544.16 = 200,681,245.12 : x
  2. Step 2: Convert to fraction form
    387,627,708.80/581,143,544.16 = 200,681,245.12/x
  3. Step 3: Cross multiply
    387,627,708.80x = 581,143,544.16 × 200,681,245.12
  4. Step 4: Simplify right side
    387,627,708.80x = 116,624,610,035,478,496
  5. Step 5: Solve for x
    x = 116,624,610,035,478,496/387,627,708.80
  6. Step 6: Final answer
    x = 300,867,578.32

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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.