Home / 307,979,306.88-461,968,960.32-103,507,382.40

Finding the Fourth Proportional to 307,979,306.88, 461,968,960.32 and 103,507,382.40

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Solution

The fourth proportional to 307,979,306.88, 461,968,960.32 and 103,507,382.40 is: 155,261,073.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,979,306.88 : 461,968,960.32 = 103,507,382.40 : x
  2. Step 2: Convert to fraction form
    307,979,306.88/461,968,960.32 = 103,507,382.40/x
  3. Step 3: Cross multiply
    307,979,306.88x = 461,968,960.32 × 103,507,382.40
  4. Step 4: Simplify right side
    307,979,306.88x = 47,817,197,832,772,672
  5. Step 5: Solve for x
    x = 47,817,197,832,772,672/307,979,306.88
  6. Step 6: Final answer
    x = 155,261,073.60

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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.