Home / 660,550,579.40-990,825,869.10-272,173,496.60

Finding the Fourth Proportional to 660,550,579.40, 990,825,869.10 and 272,173,496.60

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Solution

The fourth proportional to 660,550,579.40, 990,825,869.10 and 272,173,496.60 is: 408,260,244.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,550,579.40 : 990,825,869.10 = 272,173,496.60 : x
  2. Step 2: Convert to fraction form
    660,550,579.40/990,825,869.10 = 272,173,496.60/x
  3. Step 3: Cross multiply
    660,550,579.40x = 990,825,869.10 × 272,173,496.60
  4. Step 4: Simplify right side
    660,550,579.40x = 269,676,541,314,680,928
  5. Step 5: Solve for x
    x = 269,676,541,314,680,928/660,550,579.40
  6. Step 6: Final answer
    x = 408,260,244.90

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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.