Home / 109,053,770.40-163,297,220.40-86,189,997.60

Finding the Fourth Proportional to 109,053,770.40, 163,297,220.40 and 86,189,997.60

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Solution

The fourth proportional to 109,053,770.40, 163,297,220.40 and 86,189,997.60 is: 129,060,985.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,053,770.40 : 163,297,220.40 = 86,189,997.60 : x
  2. Step 2: Convert to fraction form
    109,053,770.40/163,297,220.40 = 86,189,997.60/x
  3. Step 3: Cross multiply
    109,053,770.40x = 163,297,220.40 × 86,189,997.60
  4. Step 4: Simplify right side
    109,053,770.40x = 14,074,587,034,362,670
  5. Step 5: Solve for x
    x = 14,074,587,034,362,670/109,053,770.40
  6. Step 6: Final answer
    x = 129,060,985.08

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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.