Home / 53,173,946.32-79,760,919.48-12,784,431.76

Finding the Fourth Proportional to 53,173,946.32, 79,760,919.48 and 12,784,431.76

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Solution

The fourth proportional to 53,173,946.32, 79,760,919.48 and 12,784,431.76 is: 19,176,647.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,173,946.32 : 79,760,919.48 = 12,784,431.76 : x
  2. Step 2: Convert to fraction form
    53,173,946.32/79,760,919.48 = 12,784,431.76/x
  3. Step 3: Cross multiply
    53,173,946.32x = 79,760,919.48 × 12,784,431.76
  4. Step 4: Simplify right side
    53,173,946.32x = 1,019,698,032,206,914.75
  5. Step 5: Solve for x
    x = 1,019,698,032,206,914.75/53,173,946.32
  6. Step 6: Final answer
    x = 19,176,647.64

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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.