Home / 199,290,712.40-298,936,068.60-121,806,614.60

Finding the Fourth Proportional to 199,290,712.40, 298,936,068.60 and 121,806,614.60

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Solution

The fourth proportional to 199,290,712.40, 298,936,068.60 and 121,806,614.60 is: 182,709,921.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,290,712.40 : 298,936,068.60 = 121,806,614.60 : x
  2. Step 2: Convert to fraction form
    199,290,712.40/298,936,068.60 = 121,806,614.60/x
  3. Step 3: Cross multiply
    199,290,712.40x = 298,936,068.60 × 121,806,614.60
  4. Step 4: Simplify right side
    199,290,712.40x = 36,412,390,497,999,360
  5. Step 5: Solve for x
    x = 36,412,390,497,999,360/199,290,712.40
  6. Step 6: Final answer
    x = 182,709,921.90

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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.