Home / 1,238,785,640.17-1,858,128,066.06-306,084,999.52

Finding the Fourth Proportional to 1,238,785,640.17, 1,858,128,066.06 and 306,084,999.52

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Solution

The fourth proportional to 1,238,785,640.17, 1,858,128,066.06 and 306,084,999.52 is: 459,115,047.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,785,640.17 : 1,858,128,066.06 = 306,084,999.52 : x
  2. Step 2: Convert to fraction form
    1,238,785,640.17/1,858,128,066.06 = 306,084,999.52/x
  3. Step 3: Cross multiply
    1,238,785,640.17x = 1,858,128,066.06 × 306,084,999.52
  4. Step 4: Simplify right side
    1,238,785,640.17x = 568,745,128,208,073,600
  5. Step 5: Solve for x
    x = 568,745,128,208,073,600/1,238,785,640.17
  6. Step 6: Final answer
    x = 459,115,047.64

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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.