Home / 1,078,392,340.89-1,617,634,668.04-423,485,073.32

Finding the Fourth Proportional to 1,078,392,340.89, 1,617,634,668.04 and 423,485,073.32

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Solution

The fourth proportional to 1,078,392,340.89, 1,617,634,668.04 and 423,485,073.32 is: 635,245,735.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,392,340.89 : 1,617,634,668.04 = 423,485,073.32 : x
  2. Step 2: Convert to fraction form
    1,078,392,340.89/1,617,634,668.04 = 423,485,073.32/x
  3. Step 3: Cross multiply
    1,078,392,340.89x = 1,617,634,668.04 × 423,485,073.32
  4. Step 4: Simplify right side
    1,078,392,340.89x = 685,044,135,990,746,368
  5. Step 5: Solve for x
    x = 685,044,135,990,746,368/1,078,392,340.89
  6. Step 6: Final answer
    x = 635,245,735.73

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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.