Home / 538,118,811.55-742,603,955.57-290,600,143.93

Finding the Fourth Proportional to 538,118,811.55, 742,603,955.57 and 290,600,143.93

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Solution

The fourth proportional to 538,118,811.55, 742,603,955.57 and 290,600,143.93 is: 401,028,196.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,118,811.55 : 742,603,955.57 = 290,600,143.93 : x
  2. Step 2: Convert to fraction form
    538,118,811.55/742,603,955.57 = 290,600,143.93/x
  3. Step 3: Cross multiply
    538,118,811.55x = 742,603,955.57 × 290,600,143.93
  4. Step 4: Simplify right side
    538,118,811.55x = 215,800,816,371,629,344
  5. Step 5: Solve for x
    x = 215,800,816,371,629,344/538,118,811.55
  6. Step 6: Final answer
    x = 401,028,196.26

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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.