Home / 1,211,114,708.76-1,671,338,970.64-654,197,761.32

Finding the Fourth Proportional to 1,211,114,708.76, 1,671,338,970.64 and 654,197,761.32

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Solution

The fourth proportional to 1,211,114,708.76, 1,671,338,970.64 and 654,197,761.32 is: 902,793,273.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,114,708.76 : 1,671,338,970.64 = 654,197,761.32 : x
  2. Step 2: Convert to fraction form
    1,211,114,708.76/1,671,338,970.64 = 654,197,761.32/x
  3. Step 3: Cross multiply
    1,211,114,708.76x = 1,671,338,970.64 × 654,197,761.32
  4. Step 4: Simplify right side
    1,211,114,708.76x = 1,093,386,212,999,561,344
  5. Step 5: Solve for x
    x = 1,093,386,212,999,561,344/1,211,114,708.76
  6. Step 6: Final answer
    x = 902,793,273.91

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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.