Home / 621,228,654.78-857,313,482.31-342,788,114.04

Finding the Fourth Proportional to 621,228,654.78, 857,313,482.31 and 342,788,114.04

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Solution

The fourth proportional to 621,228,654.78, 857,313,482.31 and 342,788,114.04 is: 473,057,495.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,228,654.78 : 857,313,482.31 = 342,788,114.04 : x
  2. Step 2: Convert to fraction form
    621,228,654.78/857,313,482.31 = 342,788,114.04/x
  3. Step 3: Cross multiply
    621,228,654.78x = 857,313,482.31 × 342,788,114.04
  4. Step 4: Simplify right side
    621,228,654.78x = 293,876,871,742,109,824
  5. Step 5: Solve for x
    x = 293,876,871,742,109,824/621,228,654.78
  6. Step 6: Final answer
    x = 473,057,495.79

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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.