Home / 801,217,662.71-1,105,686,866.46-443,991,406.41

Finding the Fourth Proportional to 801,217,662.71, 1,105,686,866.46 and 443,991,406.41

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Solution

The fourth proportional to 801,217,662.71, 1,105,686,866.46 and 443,991,406.41 is: 612,711,738.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,217,662.71 : 1,105,686,866.46 = 443,991,406.41 : x
  2. Step 2: Convert to fraction form
    801,217,662.71/1,105,686,866.46 = 443,991,406.41/x
  3. Step 3: Cross multiply
    801,217,662.71x = 1,105,686,866.46 × 443,991,406.41
  4. Step 4: Simplify right side
    801,217,662.71x = 490,915,466,888,641,280
  5. Step 5: Solve for x
    x = 490,915,466,888,641,280/801,217,662.71
  6. Step 6: Final answer
    x = 612,711,738.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.