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Finding the Fourth Proportional to 697,836,285.75, 962,986,036.75 and 380,289,788.59

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Solution

The fourth proportional to 697,836,285.75, 962,986,036.75 and 380,289,788.59 is: 524,784,629.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,836,285.75 : 962,986,036.75 = 380,289,788.59 : x
  2. Step 2: Convert to fraction form
    697,836,285.75/962,986,036.75 = 380,289,788.59/x
  3. Step 3: Cross multiply
    697,836,285.75x = 962,986,036.75 × 380,289,788.59
  4. Step 4: Simplify right side
    697,836,285.75x = 366,213,756,328,878,016
  5. Step 5: Solve for x
    x = 366,213,756,328,878,016/697,836,285.75
  6. Step 6: Final answer
    x = 524,784,629.01

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Double scale
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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.