Home / 328,759,383.96-453,561,667.91-187,638,437.19

Finding the Fourth Proportional to 328,759,383.96, 453,561,667.91 and 187,638,437.19

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Solution

The fourth proportional to 328,759,383.96, 453,561,667.91 and 187,638,437.19 is: 258,868,968.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,759,383.96 : 453,561,667.91 = 187,638,437.19 : x
  2. Step 2: Convert to fraction form
    328,759,383.96/453,561,667.91 = 187,638,437.19/x
  3. Step 3: Cross multiply
    328,759,383.96x = 453,561,667.91 × 187,638,437.19
  4. Step 4: Simplify right side
    328,759,383.96x = 85,105,602,537,388,480
  5. Step 5: Solve for x
    x = 85,105,602,537,388,480/328,759,383.96
  6. Step 6: Final answer
    x = 258,868,968.28

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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.