Home / 445,477,948.61-612,579,049.25-386,638,146.09

Finding the Fourth Proportional to 445,477,948.61, 612,579,049.25 and 386,638,146.09

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Solution

The fourth proportional to 445,477,948.61, 612,579,049.25 and 386,638,146.09 is: 531,668,130.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,477,948.61 : 612,579,049.25 = 386,638,146.09 : x
  2. Step 2: Convert to fraction form
    445,477,948.61/612,579,049.25 = 386,638,146.09/x
  3. Step 3: Cross multiply
    445,477,948.61x = 612,579,049.25 × 386,638,146.09
  4. Step 4: Simplify right side
    445,477,948.61x = 236,846,427,933,661,600
  5. Step 5: Solve for x
    x = 236,846,427,933,661,600/445,477,948.61
  6. Step 6: Final answer
    x = 531,668,130.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.