Home / 118,492,784.28-163,448,541.38-78,259,026.44

Finding the Fourth Proportional to 118,492,784.28, 163,448,541.38 and 78,259,026.44

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Solution

The fourth proportional to 118,492,784.28, 163,448,541.38 and 78,259,026.44 is: 107,950,233.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,492,784.28 : 163,448,541.38 = 78,259,026.44 : x
  2. Step 2: Convert to fraction form
    118,492,784.28/163,448,541.38 = 78,259,026.44/x
  3. Step 3: Cross multiply
    118,492,784.28x = 163,448,541.38 × 78,259,026.44
  4. Step 4: Simplify right side
    118,492,784.28x = 12,791,323,721,436,854
  5. Step 5: Solve for x
    x = 12,791,323,721,436,854/118,492,784.28
  6. Step 6: Final answer
    x = 107,950,233.42

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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.