Home / 199,300,807.60-298,951,211.40-121,816,709.80

Finding the Fourth Proportional to 199,300,807.60, 298,951,211.40 and 121,816,709.80

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Solution

The fourth proportional to 199,300,807.60, 298,951,211.40 and 121,816,709.80 is: 182,725,064.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,300,807.60 : 298,951,211.40 = 121,816,709.80 : x
  2. Step 2: Convert to fraction form
    199,300,807.60/298,951,211.40 = 121,816,709.80/x
  3. Step 3: Cross multiply
    199,300,807.60x = 298,951,211.40 × 121,816,709.80
  4. Step 4: Simplify right side
    199,300,807.60x = 36,417,252,963,472,248
  5. Step 5: Solve for x
    x = 36,417,252,963,472,248/199,300,807.60
  6. Step 6: Final answer
    x = 182,725,064.70

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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.