Home / 393,840,256.51-590,862,527.23-209,456,112.66

Finding the Fourth Proportional to 393,840,256.51, 590,862,527.23 and 209,456,112.66

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Solution

The fourth proportional to 393,840,256.51, 590,862,527.23 and 209,456,112.66 is: 314,238,491.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,840,256.51 : 590,862,527.23 = 209,456,112.66 : x
  2. Step 2: Convert to fraction form
    393,840,256.51/590,862,527.23 = 209,456,112.66/x
  3. Step 3: Cross multiply
    393,840,256.51x = 590,862,527.23 × 209,456,112.66
  4. Step 4: Simplify right side
    393,840,256.51x = 123,759,768,070,059,200
  5. Step 5: Solve for x
    x = 123,759,768,070,059,200/393,840,256.51
  6. Step 6: Final answer
    x = 314,238,491.43

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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.