Home / 697,836,285.72-962,986,036.70-380,289,788.56

Finding the Fourth Proportional to 697,836,285.72, 962,986,036.70 and 380,289,788.56

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Solution

The fourth proportional to 697,836,285.72, 962,986,036.70 and 380,289,788.56 is: 524,784,628.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,836,285.72 : 962,986,036.70 = 380,289,788.56 : x
  2. Step 2: Convert to fraction form
    697,836,285.72/962,986,036.70 = 380,289,788.56/x
  3. Step 3: Cross multiply
    697,836,285.72x = 962,986,036.70 × 380,289,788.56
  4. Step 4: Simplify right side
    697,836,285.72x = 366,213,756,281,418,688
  5. Step 5: Solve for x
    x = 366,213,756,281,418,688/697,836,285.72
  6. Step 6: Final answer
    x = 524,784,628.97

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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.