Home / 288,584,784.94-398,236,334.06-156,422,943.98

Finding the Fourth Proportional to 288,584,784.94, 398,236,334.06 and 156,422,943.98

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Solution

The fourth proportional to 288,584,784.94, 398,236,334.06 and 156,422,943.98 is: 215,857,879.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,584,784.94 : 398,236,334.06 = 156,422,943.98 : x
  2. Step 2: Convert to fraction form
    288,584,784.94/398,236,334.06 = 156,422,943.98/x
  3. Step 3: Cross multiply
    288,584,784.94x = 398,236,334.06 × 156,422,943.98
  4. Step 4: Simplify right side
    288,584,784.94x = 62,293,299,773,467,944
  5. Step 5: Solve for x
    x = 62,293,299,773,467,944/288,584,784.94
  6. Step 6: Final answer
    x = 215,857,879.64

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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.