Home / 889,438,546,020.51-1,227,339,426,810.40-498,820,967,751.60

Finding the Fourth Proportional to 889,438,546,020.51, 1,227,339,426,810.40 and 498,820,967,751.60

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Solution

The fourth proportional to 889,438,546,020.51, 1,227,339,426,810.40 and 498,820,967,751.60 is: 688,324,835,235.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,438,546,020.51 : 1,227,339,426,810.40 = 498,820,967,751.60 : x
  2. Step 2: Convert to fraction form
    889,438,546,020.51/1,227,339,426,810.40 = 498,820,967,751.60/x
  3. Step 3: Cross multiply
    889,438,546,020.51x = 1,227,339,426,810.40 × 498,820,967,751.60
  4. Step 4: Simplify right side
    889,438,546,020.51x = 612,222,640,641,257,685,123,072
  5. Step 5: Solve for x
    x = 612,222,640,641,257,685,123,072/889,438,546,020.51
  6. Step 6: Final answer
    x = 688,324,835,235.04

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Double scale
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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.