Home / 307,979,311.88-461,968,967.82-103,507,387.40

Finding the Fourth Proportional to 307,979,311.88, 461,968,967.82 and 103,507,387.40

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Solution

The fourth proportional to 307,979,311.88, 461,968,967.82 and 103,507,387.40 is: 155,261,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,979,311.88 : 461,968,967.82 = 103,507,387.40 : x
  2. Step 2: Convert to fraction form
    307,979,311.88/461,968,967.82 = 103,507,387.40/x
  3. Step 3: Cross multiply
    307,979,311.88x = 461,968,967.82 × 103,507,387.40
  4. Step 4: Simplify right side
    307,979,311.88x = 47,817,200,918,922,872
  5. Step 5: Solve for x
    x = 47,817,200,918,922,872/307,979,311.88
  6. Step 6: Final answer
    x = 155,261,081.10

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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.