Home / 129,310,016,006.40-193,965,024,009.60-76,414,205,241.60

Finding the Fourth Proportional to 129,310,016,006.40, 193,965,024,009.60 and 76,414,205,241.60

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Solution

The fourth proportional to 129,310,016,006.40, 193,965,024,009.60 and 76,414,205,241.60 is: 114,621,307,862.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,310,016,006.40 : 193,965,024,009.60 = 76,414,205,241.60 : x
  2. Step 2: Convert to fraction form
    129,310,016,006.40/193,965,024,009.60 = 76,414,205,241.60/x
  3. Step 3: Cross multiply
    129,310,016,006.40x = 193,965,024,009.60 × 76,414,205,241.60
  4. Step 4: Simplify right side
    129,310,016,006.40x = 14,821,683,154,361,446,825,984
  5. Step 5: Solve for x
    x = 14,821,683,154,361,446,825,984/129,310,016,006.40
  6. Step 6: Final answer
    x = 114,621,307,862.40

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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.