Home / 128,736,006.20-193,104,009.30-47,946,476.60

Finding the Fourth Proportional to 128,736,006.20, 193,104,009.30 and 47,946,476.60

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Solution

The fourth proportional to 128,736,006.20, 193,104,009.30 and 47,946,476.60 is: 71,919,714.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,736,006.20 : 193,104,009.30 = 47,946,476.60 : x
  2. Step 2: Convert to fraction form
    128,736,006.20/193,104,009.30 = 47,946,476.60/x
  3. Step 3: Cross multiply
    128,736,006.20x = 193,104,009.30 × 47,946,476.60
  4. Step 4: Simplify right side
    128,736,006.20x = 9,258,656,863,268,634
  5. Step 5: Solve for x
    x = 9,258,656,863,268,634/128,736,006.20
  6. Step 6: Final answer
    x = 71,919,714.90

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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.