Home / 1,290,261,338,424.50-1,780,560,821,313.20-712,197,966,289.95

Finding the Fourth Proportional to 1,290,261,338,424.50, 1,780,560,821,313.20 and 712,197,966,289.95

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Solution

The fourth proportional to 1,290,261,338,424.50, 1,780,560,821,313.20 and 712,197,966,289.95 is: 982,833,289,683.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,261,338,424.50 : 1,780,560,821,313.20 = 712,197,966,289.95 : x
  2. Step 2: Convert to fraction form
    1,290,261,338,424.50/1,780,560,821,313.20 = 712,197,966,289.95/x
  3. Step 3: Cross multiply
    1,290,261,338,424.50x = 1,780,560,821,313.20 × 712,197,966,289.95
  4. Step 4: Simplify right side
    1,290,261,338,424.50x = 1,268,111,795,794,824,075,935,744
  5. Step 5: Solve for x
    x = 1,268,111,795,794,824,075,935,744/1,290,261,338,424.50
  6. Step 6: Final answer
    x = 982,833,289,683.22

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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.