Home / 189,448,770.16-261,436,543.20-105,818,090.80

Finding the Fourth Proportional to 189,448,770.16, 261,436,543.20 and 105,818,090.80

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Solution

The fourth proportional to 189,448,770.16, 261,436,543.20 and 105,818,090.80 is: 146,027,423.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,448,770.16 : 261,436,543.20 = 105,818,090.80 : x
  2. Step 2: Convert to fraction form
    189,448,770.16/261,436,543.20 = 105,818,090.80/x
  3. Step 3: Cross multiply
    189,448,770.16x = 261,436,543.20 × 105,818,090.80
  4. Step 4: Simplify right side
    189,448,770.16x = 27,664,715,866,775,720
  5. Step 5: Solve for x
    x = 27,664,715,866,775,720/189,448,770.16
  6. Step 6: Final answer
    x = 146,027,423.90

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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.