Home / 31,342,078.64-47,013,055.32-8,315,321.26

Finding the Fourth Proportional to 31,342,078.64, 47,013,055.32 and 8,315,321.26

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Solution

The fourth proportional to 31,342,078.64, 47,013,055.32 and 8,315,321.26 is: 12,472,965.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,342,078.64 : 47,013,055.32 = 8,315,321.26 : x
  2. Step 2: Convert to fraction form
    31,342,078.64/47,013,055.32 = 8,315,321.26/x
  3. Step 3: Cross multiply
    31,342,078.64x = 47,013,055.32 × 8,315,321.26
  4. Step 4: Simplify right side
    31,342,078.64x = 390,928,658,463,810.88
  5. Step 5: Solve for x
    x = 390,928,658,463,810.88/31,342,078.64
  6. Step 6: Final answer
    x = 12,472,965.27

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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.