Home / 139,953,351.40-209,930,027.10-89,060,986.60

Finding the Fourth Proportional to 139,953,351.40, 209,930,027.10 and 89,060,986.60

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Solution

The fourth proportional to 139,953,351.40, 209,930,027.10 and 89,060,986.60 is: 133,591,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,953,351.40 : 209,930,027.10 = 89,060,986.60 : x
  2. Step 2: Convert to fraction form
    139,953,351.40/209,930,027.10 = 89,060,986.60/x
  3. Step 3: Cross multiply
    139,953,351.40x = 209,930,027.10 × 89,060,986.60
  4. Step 4: Simplify right side
    139,953,351.40x = 18,696,575,330,490,736
  5. Step 5: Solve for x
    x = 18,696,575,330,490,736/139,953,351.40
  6. Step 6: Final answer
    x = 133,591,479.90

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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.