Home / 1,279,856,525,631.50-1,918,440,917,640-430,618,222,576.98

Finding the Fourth Proportional to 1,279,856,525,631.50, 1,918,440,917,640 and 430,618,222,576.98

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Solution

The fourth proportional to 1,279,856,525,631.50, 1,918,440,917,640 and 430,618,222,576.98 is: 645,475,177,512.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,856,525,631.50 : 1,918,440,917,640 = 430,618,222,576.98 : x
  2. Step 2: Convert to fraction form
    1,279,856,525,631.50/1,918,440,917,640 = 430,618,222,576.98/x
  3. Step 3: Cross multiply
    1,279,856,525,631.50x = 1,918,440,917,640 × 430,618,222,576.98
  4. Step 4: Simplify right side
    1,279,856,525,631.50x = 826,115,618,073,087,301,386,240
  5. Step 5: Solve for x
    x = 826,115,618,073,087,301,386,240/1,279,856,525,631.50
  6. Step 6: Final answer
    x = 645,475,177,512.94

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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.