Home / 1,078,392,341.89-1,617,634,669.54-423,485,074.32

Finding the Fourth Proportional to 1,078,392,341.89, 1,617,634,669.54 and 423,485,074.32

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Solution

The fourth proportional to 1,078,392,341.89, 1,617,634,669.54 and 423,485,074.32 is: 635,245,737.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,392,341.89 : 1,617,634,669.54 = 423,485,074.32 : x
  2. Step 2: Convert to fraction form
    1,078,392,341.89/1,617,634,669.54 = 423,485,074.32/x
  3. Step 3: Cross multiply
    1,078,392,341.89x = 1,617,634,669.54 × 423,485,074.32
  4. Step 4: Simplify right side
    1,078,392,341.89x = 685,044,138,252,755,456
  5. Step 5: Solve for x
    x = 685,044,138,252,755,456/1,078,392,341.89
  6. Step 6: Final answer
    x = 635,245,737.24

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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.