Home / 199,051,120,555.88-298,789,156,570.80-85,786,742,960.96

Finding the Fourth Proportional to 199,051,120,555.88, 298,789,156,570.80 and 85,786,742,960.96

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Solution

The fourth proportional to 199,051,120,555.88, 298,789,156,570.80 and 85,786,742,960.96 is: 128,771,686,904.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,051,120,555.88 : 298,789,156,570.80 = 85,786,742,960.96 : x
  2. Step 2: Convert to fraction form
    199,051,120,555.88/298,789,156,570.80 = 85,786,742,960.96/x
  3. Step 3: Cross multiply
    199,051,120,555.88x = 298,789,156,570.80 × 85,786,742,960.96
  4. Step 4: Simplify right side
    199,051,120,555.88x = 25,632,148,574,261,252,980,736
  5. Step 5: Solve for x
    x = 25,632,148,574,261,252,980,736/199,051,120,555.88
  6. Step 6: Final answer
    x = 128,771,686,904.75

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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.