Home / 1,277,662,362.40-1,916,493,543.60-818,497,338.40

Finding the Fourth Proportional to 1,277,662,362.40, 1,916,493,543.60 and 818,497,338.40

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Solution

The fourth proportional to 1,277,662,362.40, 1,916,493,543.60 and 818,497,338.40 is: 1,227,746,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,662,362.40 : 1,916,493,543.60 = 818,497,338.40 : x
  2. Step 2: Convert to fraction form
    1,277,662,362.40/1,916,493,543.60 = 818,497,338.40/x
  3. Step 3: Cross multiply
    1,277,662,362.40x = 1,916,493,543.60 × 818,497,338.40
  4. Step 4: Simplify right side
    1,277,662,362.40x = 1,568,644,864,497,384,192
  5. Step 5: Solve for x
    x = 1,568,644,864,497,384,192/1,277,662,362.40
  6. Step 6: Final answer
    x = 1,227,746,007.60

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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.