Home / 431,277,907.82-646,686,693.65-223,807,420.16

Finding the Fourth Proportional to 431,277,907.82, 646,686,693.65 and 223,807,420.16

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Solution

The fourth proportional to 431,277,907.82, 646,686,693.65 and 223,807,420.16 is: 335,591,686.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,277,907.82 : 646,686,693.65 = 223,807,420.16 : x
  2. Step 2: Convert to fraction form
    431,277,907.82/646,686,693.65 = 223,807,420.16/x
  3. Step 3: Cross multiply
    431,277,907.82x = 646,686,693.65 × 223,807,420.16
  4. Step 4: Simplify right side
    431,277,907.82x = 144,733,280,556,487,712
  5. Step 5: Solve for x
    x = 144,733,280,556,487,712/431,277,907.82
  6. Step 6: Final answer
    x = 335,591,686.78

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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.