Home / 219,922,403.70-330,069,609.90-90,622,808.40

Finding the Fourth Proportional to 219,922,403.70, 330,069,609.90 and 90,622,808.40

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Solution

The fourth proportional to 219,922,403.70, 330,069,609.90 and 90,622,808.40 is: 136,010,858.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,922,403.70 : 330,069,609.90 = 90,622,808.40 : x
  2. Step 2: Convert to fraction form
    219,922,403.70/330,069,609.90 = 90,622,808.40/x
  3. Step 3: Cross multiply
    219,922,403.70x = 330,069,609.90 × 90,622,808.40
  4. Step 4: Simplify right side
    219,922,403.70x = 29,911,835,016,630,444
  5. Step 5: Solve for x
    x = 29,911,835,016,630,444/219,922,403.70
  6. Step 6: Final answer
    x = 136,010,858.89

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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.