Home / 621,561,501.69-857,775,173.86-339,318,992.16

Finding the Fourth Proportional to 621,561,501.69, 857,775,173.86 and 339,318,992.16

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Solution

The fourth proportional to 621,561,501.69, 857,775,173.86 and 339,318,992.16 is: 468,271,292.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,561,501.69 : 857,775,173.86 = 339,318,992.16 : x
  2. Step 2: Convert to fraction form
    621,561,501.69/857,775,173.86 = 339,318,992.16/x
  3. Step 3: Cross multiply
    621,561,501.69x = 857,775,173.86 × 339,318,992.16
  4. Step 4: Simplify right side
    621,561,501.69x = 291,059,407,494,468,160
  5. Step 5: Solve for x
    x = 291,059,407,494,468,160/621,561,501.69
  6. Step 6: Final answer
    x = 468,271,292.07

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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.