Home / 911,088,007.70-1,366,632,011.55-419,800,327.70

Finding the Fourth Proportional to 911,088,007.70, 1,366,632,011.55 and 419,800,327.70

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Solution

The fourth proportional to 911,088,007.70, 1,366,632,011.55 and 419,800,327.70 is: 629,700,491.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,088,007.70 : 1,366,632,011.55 = 419,800,327.70 : x
  2. Step 2: Convert to fraction form
    911,088,007.70/1,366,632,011.55 = 419,800,327.70/x
  3. Step 3: Cross multiply
    911,088,007.70x = 1,366,632,011.55 × 419,800,327.70
  4. Step 4: Simplify right side
    911,088,007.70x = 573,712,566,294,000,128
  5. Step 5: Solve for x
    x = 573,712,566,294,000,128/911,088,007.70
  6. Step 6: Final answer
    x = 629,700,491.55

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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.