Home / 438,501,086.36-657,536,395.67-216,916,408.52

Finding the Fourth Proportional to 438,501,086.36, 657,536,395.67 and 216,916,408.52

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Solution

The fourth proportional to 438,501,086.36, 657,536,395.67 and 216,916,408.52 is: 325,268,141.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,501,086.36 : 657,536,395.67 = 216,916,408.52 : x
  2. Step 2: Convert to fraction form
    438,501,086.36/657,536,395.67 = 216,916,408.52/x
  3. Step 3: Cross multiply
    438,501,086.36x = 657,536,395.67 × 216,916,408.52
  4. Step 4: Simplify right side
    438,501,086.36x = 142,630,433,418,837,488
  5. Step 5: Solve for x
    x = 142,630,433,418,837,488/438,501,086.36
  6. Step 6: Final answer
    x = 325,268,141.53

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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.