Home / 1,263,178,429.60-1,895,197,812.72-680,968,936.48

Finding the Fourth Proportional to 1,263,178,429.60, 1,895,197,812.72 and 680,968,936.48

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Solution

The fourth proportional to 1,263,178,429.60, 1,895,197,812.72 and 680,968,936.48 is: 1,021,685,304.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,178,429.60 : 1,895,197,812.72 = 680,968,936.48 : x
  2. Step 2: Convert to fraction form
    1,263,178,429.60/1,895,197,812.72 = 680,968,936.48/x
  3. Step 3: Cross multiply
    1,263,178,429.60x = 1,895,197,812.72 × 680,968,936.48
  4. Step 4: Simplify right side
    1,263,178,429.60x = 1,290,570,838,947,160,576
  5. Step 5: Solve for x
    x = 1,290,570,838,947,160,576/1,263,178,429.60
  6. Step 6: Final answer
    x = 1,021,685,304.87

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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.