Home / 7,219,690.72-9,963,447.68-4,122,718.72

Finding the Fourth Proportional to 7,219,690.72, 9,963,447.68 and 4,122,718.72

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Solution

The fourth proportional to 7,219,690.72, 9,963,447.68 and 4,122,718.72 is: 5,689,508.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219,690.72 : 9,963,447.68 = 4,122,718.72 : x
  2. Step 2: Convert to fraction form
    7,219,690.72/9,963,447.68 = 4,122,718.72/x
  3. Step 3: Cross multiply
    7,219,690.72x = 9,963,447.68 × 4,122,718.72
  4. Step 4: Simplify right side
    7,219,690.72x = 41,076,492,266,076.57
  5. Step 5: Solve for x
    x = 41,076,492,266,076.57/7,219,690.72
  6. Step 6: Final answer
    x = 5,689,508.58

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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.