Home / 151,573,776.96-209,171,664.80-81,958,991.20

Finding the Fourth Proportional to 151,573,776.96, 209,171,664.80 and 81,958,991.20

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Solution

The fourth proportional to 151,573,776.96, 209,171,664.80 and 81,958,991.20 is: 113,103,328.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,573,776.96 : 209,171,664.80 = 81,958,991.20 : x
  2. Step 2: Convert to fraction form
    151,573,776.96/209,171,664.80 = 81,958,991.20/x
  3. Step 3: Cross multiply
    151,573,776.96x = 209,171,664.80 × 81,958,991.20
  4. Step 4: Simplify right side
    151,573,776.96x = 17,143,498,634,632,552
  5. Step 5: Solve for x
    x = 17,143,498,634,632,552/151,573,776.96
  6. Step 6: Final answer
    x = 113,103,328.15

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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.