Home / 186,029,287.20-279,043,930.80-145,674,266.40

Finding the Fourth Proportional to 186,029,287.20, 279,043,930.80 and 145,674,266.40

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Solution

The fourth proportional to 186,029,287.20, 279,043,930.80 and 145,674,266.40 is: 218,511,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,029,287.20 : 279,043,930.80 = 145,674,266.40 : x
  2. Step 2: Convert to fraction form
    186,029,287.20/279,043,930.80 = 145,674,266.40/x
  3. Step 3: Cross multiply
    186,029,287.20x = 279,043,930.80 × 145,674,266.40
  4. Step 4: Simplify right side
    186,029,287.20x = 40,649,519,912,662,368
  5. Step 5: Solve for x
    x = 40,649,519,912,662,368/186,029,287.20
  6. Step 6: Final answer
    x = 218,511,399.60

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1.5x scale

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.