Home / 72,757,335.40-109,136,003.10-36,371,341.60

Finding the Fourth Proportional to 72,757,335.40, 109,136,003.10 and 36,371,341.60

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Solution

The fourth proportional to 72,757,335.40, 109,136,003.10 and 36,371,341.60 is: 54,557,012.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,757,335.40 : 109,136,003.10 = 36,371,341.60 : x
  2. Step 2: Convert to fraction form
    72,757,335.40/109,136,003.10 = 36,371,341.60/x
  3. Step 3: Cross multiply
    72,757,335.40x = 109,136,003.10 × 36,371,341.60
  4. Step 4: Simplify right side
    72,757,335.40x = 3,969,422,849,608,759
  5. Step 5: Solve for x
    x = 3,969,422,849,608,759/72,757,335.40
  6. Step 6: Final answer
    x = 54,557,012.40

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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.