Home / 154,886,462.28-213,735,203.64-85,258,243.44

Finding the Fourth Proportional to 154,886,462.28, 213,735,203.64 and 85,258,243.44

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Solution

The fourth proportional to 154,886,462.28, 213,735,203.64 and 85,258,243.44 is: 117,651,909.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,886,462.28 : 213,735,203.64 = 85,258,243.44 : x
  2. Step 2: Convert to fraction form
    154,886,462.28/213,735,203.64 = 85,258,243.44/x
  3. Step 3: Cross multiply
    154,886,462.28x = 213,735,203.64 × 85,258,243.44
  4. Step 4: Simplify right side
    154,886,462.28x = 18,222,688,023,637,092
  5. Step 5: Solve for x
    x = 18,222,688,023,637,092/154,886,462.28
  6. Step 6: Final answer
    x = 117,651,909.38

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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.