Home / 199,300,619.60-298,950,929.40-121,816,521.80

Finding the Fourth Proportional to 199,300,619.60, 298,950,929.40 and 121,816,521.80

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Solution

The fourth proportional to 199,300,619.60, 298,950,929.40 and 121,816,521.80 is: 182,724,782.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,300,619.60 : 298,950,929.40 = 121,816,521.80 : x
  2. Step 2: Convert to fraction form
    199,300,619.60/298,950,929.40 = 121,816,521.80/x
  3. Step 3: Cross multiply
    199,300,619.60x = 298,950,929.40 × 121,816,521.80
  4. Step 4: Simplify right side
    199,300,619.60x = 36,417,162,408,385,360
  5. Step 5: Solve for x
    x = 36,417,162,408,385,360/199,300,619.60
  6. Step 6: Final answer
    x = 182,724,782.70

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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.