Home / 565,507,810.44-780,407,960.36-311,218,444.75

Finding the Fourth Proportional to 565,507,810.44, 780,407,960.36 and 311,218,444.75

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Solution

The fourth proportional to 565,507,810.44, 780,407,960.36 and 311,218,444.75 is: 429,485,406.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,507,810.44 : 780,407,960.36 = 311,218,444.75 : x
  2. Step 2: Convert to fraction form
    565,507,810.44/780,407,960.36 = 311,218,444.75/x
  3. Step 3: Cross multiply
    565,507,810.44x = 780,407,960.36 × 311,218,444.75
  4. Step 4: Simplify right side
    565,507,810.44x = 242,877,351,693,758,848
  5. Step 5: Solve for x
    x = 242,877,351,693,758,848/565,507,810.44
  6. Step 6: Final answer
    x = 429,485,406.23

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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.