Home / 12,215,943.16-18,319,845.60-4,927,520.44

Finding the Fourth Proportional to 12,215,943.16, 18,319,845.60 and 4,927,520.44

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Solution

The fourth proportional to 12,215,943.16, 18,319,845.60 and 4,927,520.44 is: 7,389,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215,943.16 : 18,319,845.60 = 4,927,520.44 : x
  2. Step 2: Convert to fraction form
    12,215,943.16/18,319,845.60 = 4,927,520.44/x
  3. Step 3: Cross multiply
    12,215,943.16x = 18,319,845.60 × 4,927,520.44
  4. Step 4: Simplify right side
    12,215,943.16x = 90,271,413,651,644.08
  5. Step 5: Solve for x
    x = 90,271,413,651,644.08/12,215,943.16
  6. Step 6: Final answer
    x = 7,389,639.30

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1.5x scale

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.