Home / 12,997,054.80-19,495,582.20-11,989,285.20

Finding the Fourth Proportional to 12,997,054.80, 19,495,582.20 and 11,989,285.20

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Solution

The fourth proportional to 12,997,054.80, 19,495,582.20 and 11,989,285.20 is: 17,983,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,054.80 : 19,495,582.20 = 11,989,285.20 : x
  2. Step 2: Convert to fraction form
    12,997,054.80/19,495,582.20 = 11,989,285.20/x
  3. Step 3: Cross multiply
    12,997,054.80x = 19,495,582.20 × 11,989,285.20
  4. Step 4: Simplify right side
    12,997,054.80x = 233,738,095,135,843.41
  5. Step 5: Solve for x
    x = 233,738,095,135,843.41/12,997,054.80
  6. Step 6: Final answer
    x = 17,983,927.80

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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.