Home / 390,066,337.44-538,292,264.88-211,449,673.44

Finding the Fourth Proportional to 390,066,337.44, 538,292,264.88 and 211,449,673.44

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Solution

The fourth proportional to 390,066,337.44, 538,292,264.88 and 211,449,673.44 is: 291,800,939.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,066,337.44 : 538,292,264.88 = 211,449,673.44 : x
  2. Step 2: Convert to fraction form
    390,066,337.44/538,292,264.88 = 211,449,673.44/x
  3. Step 3: Cross multiply
    390,066,337.44x = 538,292,264.88 × 211,449,673.44
  4. Step 4: Simplify right side
    390,066,337.44x = 113,821,723,624,153,984
  5. Step 5: Solve for x
    x = 113,821,723,624,153,984/390,066,337.44
  6. Step 6: Final answer
    x = 291,800,939.22

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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.