Home / 219,452,406.90-329,178,610.36-90,152,811.60

Finding the Fourth Proportional to 219,452,406.90, 329,178,610.36 and 90,152,811.60

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Solution

The fourth proportional to 219,452,406.90, 329,178,610.36 and 90,152,811.60 is: 135,229,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,452,406.90 : 329,178,610.36 = 90,152,811.60 : x
  2. Step 2: Convert to fraction form
    219,452,406.90/329,178,610.36 = 90,152,811.60/x
  3. Step 3: Cross multiply
    219,452,406.90x = 329,178,610.36 × 90,152,811.60
  4. Step 4: Simplify right side
    219,452,406.90x = 29,676,377,242,534,888
  5. Step 5: Solve for x
    x = 29,676,377,242,534,888/219,452,406.90
  6. Step 6: Final answer
    x = 135,229,217.40

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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.