Home / 2,115,477,071.42-3,173,229,129.24-621,502,504.82

Finding the Fourth Proportional to 2,115,477,071.42, 3,173,229,129.24 and 621,502,504.82

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Solution

The fourth proportional to 2,115,477,071.42, 3,173,229,129.24 and 621,502,504.82 is: 932,257,729.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,477,071.42 : 3,173,229,129.24 = 621,502,504.82 : x
  2. Step 2: Convert to fraction form
    2,115,477,071.42/3,173,229,129.24 = 621,502,504.82/x
  3. Step 3: Cross multiply
    2,115,477,071.42x = 3,173,229,129.24 × 621,502,504.82
  4. Step 4: Simplify right side
    2,115,477,071.42x = 1,972,169,852,190,447,616
  5. Step 5: Solve for x
    x = 1,972,169,852,190,447,616/2,115,477,071.42
  6. Step 6: Final answer
    x = 932,257,729.87

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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.