Home / 660,051,908,998.20-990,077,863,497.30-434,108,279,813.40

Finding the Fourth Proportional to 660,051,908,998.20, 990,077,863,497.30 and 434,108,279,813.40

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Solution

The fourth proportional to 660,051,908,998.20, 990,077,863,497.30 and 434,108,279,813.40 is: 651,162,419,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,051,908,998.20 : 990,077,863,497.30 = 434,108,279,813.40 : x
  2. Step 2: Convert to fraction form
    660,051,908,998.20/990,077,863,497.30 = 434,108,279,813.40/x
  3. Step 3: Cross multiply
    660,051,908,998.20x = 990,077,863,497.30 × 434,108,279,813.40
  4. Step 4: Simplify right side
    660,051,908,998.20x = 429,800,998,204,139,183,800,320
  5. Step 5: Solve for x
    x = 429,800,998,204,139,183,800,320/660,051,908,998.20
  6. Step 6: Final answer
    x = 651,162,419,720.10

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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.