Home / 199,259,920.40-298,665,931.80-102,178,115.60

Finding the Fourth Proportional to 199,259,920.40, 298,665,931.80 and 102,178,115.60

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Solution

The fourth proportional to 199,259,920.40, 298,665,931.80 and 102,178,115.60 is: 153,152,335.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,259,920.40 : 298,665,931.80 = 102,178,115.60 : x
  2. Step 2: Convert to fraction form
    199,259,920.40/298,665,931.80 = 102,178,115.60/x
  3. Step 3: Cross multiply
    199,259,920.40x = 298,665,931.80 × 102,178,115.60
  4. Step 4: Simplify right side
    199,259,920.40x = 30,517,122,105,242,116
  5. Step 5: Solve for x
    x = 30,517,122,105,242,116/199,259,920.40
  6. Step 6: Final answer
    x = 153,152,335.12

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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.