Home / 1,078,392,338.64-1,617,634,664.66-423,485,071.07

Finding the Fourth Proportional to 1,078,392,338.64, 1,617,634,664.66 and 423,485,071.07

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Solution

The fourth proportional to 1,078,392,338.64, 1,617,634,664.66 and 423,485,071.07 is: 635,245,732.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,392,338.64 : 1,617,634,664.66 = 423,485,071.07 : x
  2. Step 2: Convert to fraction form
    1,078,392,338.64/1,617,634,664.66 = 423,485,071.07/x
  3. Step 3: Cross multiply
    1,078,392,338.64x = 1,617,634,664.66 × 423,485,071.07
  4. Step 4: Simplify right side
    1,078,392,338.64x = 685,044,130,921,806,208
  5. Step 5: Solve for x
    x = 685,044,130,921,806,208/1,078,392,338.64
  6. Step 6: Final answer
    x = 635,245,732.35

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Double scale
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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.