Home / 438,760,699.75-605,489,853.14-243,190,411.75

Finding the Fourth Proportional to 438,760,699.75, 605,489,853.14 and 243,190,411.75

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Solution

The fourth proportional to 438,760,699.75, 605,489,853.14 and 243,190,411.75 is: 335,602,816.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,760,699.75 : 605,489,853.14 = 243,190,411.75 : x
  2. Step 2: Convert to fraction form
    438,760,699.75/605,489,853.14 = 243,190,411.75/x
  3. Step 3: Cross multiply
    438,760,699.75x = 605,489,853.14 × 243,190,411.75
  4. Step 4: Simplify right side
    438,760,699.75x = 147,249,326,695,563,616
  5. Step 5: Solve for x
    x = 147,249,326,695,563,616/438,760,699.75
  6. Step 6: Final answer
    x = 335,602,816.71

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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.