Home / 129,290,510.58-178,424,672.57-70,556,958.82

Finding the Fourth Proportional to 129,290,510.58, 178,424,672.57 and 70,556,958.82

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Solution

The fourth proportional to 129,290,510.58, 178,424,672.57 and 70,556,958.82 is: 97,370,659.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,290,510.58 : 178,424,672.57 = 70,556,958.82 : x
  2. Step 2: Convert to fraction form
    129,290,510.58/178,424,672.57 = 70,556,958.82/x
  3. Step 3: Cross multiply
    129,290,510.58x = 178,424,672.57 × 70,556,958.82
  4. Step 4: Simplify right side
    129,290,510.58x = 12,589,102,274,993,472
  5. Step 5: Solve for x
    x = 12,589,102,274,993,472/129,290,510.58
  6. Step 6: Final answer
    x = 97,370,659.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.