Home / 293,616,438.40-439,819,166.40-172,079,516.80

Finding the Fourth Proportional to 293,616,438.40, 439,819,166.40 and 172,079,516.80

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Solution

The fourth proportional to 293,616,438.40, 439,819,166.40 and 172,079,516.80 is: 257,764,415.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,616,438.40 : 439,819,166.40 = 172,079,516.80 : x
  2. Step 2: Convert to fraction form
    293,616,438.40/439,819,166.40 = 172,079,516.80/x
  3. Step 3: Cross multiply
    293,616,438.40x = 439,819,166.40 × 172,079,516.80
  4. Step 4: Simplify right side
    293,616,438.40x = 75,683,869,633,490,800
  5. Step 5: Solve for x
    x = 75,683,869,633,490,800/293,616,438.40
  6. Step 6: Final answer
    x = 257,764,415.53

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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.