Home / 145,079,997.40-217,619,996.10-136,765,898.20

Finding the Fourth Proportional to 145,079,997.40, 217,619,996.10 and 136,765,898.20

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Solution

The fourth proportional to 145,079,997.40, 217,619,996.10 and 136,765,898.20 is: 205,148,847.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,079,997.40 : 217,619,996.10 = 136,765,898.20 : x
  2. Step 2: Convert to fraction form
    145,079,997.40/217,619,996.10 = 136,765,898.20/x
  3. Step 3: Cross multiply
    145,079,997.40x = 217,619,996.10 × 136,765,898.20
  4. Step 4: Simplify right side
    145,079,997.40x = 29,762,994,232,896,992
  5. Step 5: Solve for x
    x = 29,762,994,232,896,992/145,079,997.40
  6. Step 6: Final answer
    x = 205,148,847.30

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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.