Home / 390,482,846.09-538,864,849.32-214,273,790.27

Finding the Fourth Proportional to 390,482,846.09, 538,864,849.32 and 214,273,790.27

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Solution

The fourth proportional to 390,482,846.09, 538,864,849.32 and 214,273,790.27 is: 295,697,019.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,482,846.09 : 538,864,849.32 = 214,273,790.27 : x
  2. Step 2: Convert to fraction form
    390,482,846.09/538,864,849.32 = 214,273,790.27/x
  3. Step 3: Cross multiply
    390,482,846.09x = 538,864,849.32 × 214,273,790.27
  4. Step 4: Simplify right side
    390,482,846.09x = 115,464,613,707,068,848
  5. Step 5: Solve for x
    x = 115,464,613,707,068,848/390,482,846.09
  6. Step 6: Final answer
    x = 295,697,019.38

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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.