Home / 1,331,964,429.80-1,997,946,644.70-1,311,557,095.40

Finding the Fourth Proportional to 1,331,964,429.80, 1,997,946,644.70 and 1,311,557,095.40

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Solution

The fourth proportional to 1,331,964,429.80, 1,997,946,644.70 and 1,311,557,095.40 is: 1,967,335,643.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,964,429.80 : 1,997,946,644.70 = 1,311,557,095.40 : x
  2. Step 2: Convert to fraction form
    1,331,964,429.80/1,997,946,644.70 = 1,311,557,095.40/x
  3. Step 3: Cross multiply
    1,331,964,429.80x = 1,997,946,644.70 × 1,311,557,095.40
  4. Step 4: Simplify right side
    1,331,964,429.80x = 2,620,421,098,086,907,904
  5. Step 5: Solve for x
    x = 2,620,421,098,086,907,904/1,331,964,429.80
  6. Step 6: Final answer
    x = 1,967,335,643.10

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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.