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Finding the Fourth Proportional to 538,414,347.40, 807,621,521.10 and 460,930,249.60

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Solution

The fourth proportional to 538,414,347.40, 807,621,521.10 and 460,930,249.60 is: 691,395,374.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,414,347.40 : 807,621,521.10 = 460,930,249.60 : x
  2. Step 2: Convert to fraction form
    538,414,347.40/807,621,521.10 = 460,930,249.60/x
  3. Step 3: Cross multiply
    538,414,347.40x = 807,621,521.10 × 460,930,249.60
  4. Step 4: Simplify right side
    538,414,347.40x = 372,257,189,302,954,688
  5. Step 5: Solve for x
    x = 372,257,189,302,954,688/538,414,347.40
  6. Step 6: Final answer
    x = 691,395,374.40

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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.