Home / 682,717,037.40-942,149,512.80-369,451,251.23

Finding the Fourth Proportional to 682,717,037.40, 942,149,512.80 and 369,451,251.23

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Solution

The fourth proportional to 682,717,037.40, 942,149,512.80 and 369,451,251.23 is: 509,842,727.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,717,037.40 : 942,149,512.80 = 369,451,251.23 : x
  2. Step 2: Convert to fraction form
    682,717,037.40/942,149,512.80 = 369,451,251.23/x
  3. Step 3: Cross multiply
    682,717,037.40x = 942,149,512.80 × 369,451,251.23
  4. Step 4: Simplify right side
    682,717,037.40x = 348,078,316,344,984,128
  5. Step 5: Solve for x
    x = 348,078,316,344,984,128/682,717,037.40
  6. Step 6: Final answer
    x = 509,842,727.33

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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.