Home / 550,852,601.04-760,118,796.72-312,621,921.54

Finding the Fourth Proportional to 550,852,601.04, 760,118,796.72 and 312,621,921.54

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Solution

The fourth proportional to 550,852,601.04, 760,118,796.72 and 312,621,921.54 is: 431,385,452.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,852,601.04 : 760,118,796.72 = 312,621,921.54 : x
  2. Step 2: Convert to fraction form
    550,852,601.04/760,118,796.72 = 312,621,921.54/x
  3. Step 3: Cross multiply
    550,852,601.04x = 760,118,796.72 × 312,621,921.54
  4. Step 4: Simplify right side
    550,852,601.04x = 237,629,798,829,279,072
  5. Step 5: Solve for x
    x = 237,629,798,829,279,072/550,852,601.04
  6. Step 6: Final answer
    x = 431,385,452.99

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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.