Home / 781,245,794.35-1,078,120,263.81-424,013,576.48

Finding the Fourth Proportional to 781,245,794.35, 1,078,120,263.81 and 424,013,576.48

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Solution

The fourth proportional to 781,245,794.35, 1,078,120,263.81 and 424,013,576.48 is: 585,139,314.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,245,794.35 : 1,078,120,263.81 = 424,013,576.48 : x
  2. Step 2: Convert to fraction form
    781,245,794.35/1,078,120,263.81 = 424,013,576.48/x
  3. Step 3: Cross multiply
    781,245,794.35x = 1,078,120,263.81 × 424,013,576.48
  4. Step 4: Simplify right side
    781,245,794.35x = 457,137,628,933,639,232
  5. Step 5: Solve for x
    x = 457,137,628,933,639,232/781,245,794.35
  6. Step 6: Final answer
    x = 585,139,314.98

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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.