Home / 312,130,411.22-430,739,817.64-186,682,604.96

Finding the Fourth Proportional to 312,130,411.22, 430,739,817.64 and 186,682,604.96

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Solution

The fourth proportional to 312,130,411.22, 430,739,817.64 and 186,682,604.96 is: 257,621,905.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,130,411.22 : 430,739,817.64 = 186,682,604.96 : x
  2. Step 2: Convert to fraction form
    312,130,411.22/430,739,817.64 = 186,682,604.96/x
  3. Step 3: Cross multiply
    312,130,411.22x = 430,739,817.64 × 186,682,604.96
  4. Step 4: Simplify right side
    312,130,411.22x = 80,411,631,217,030,560
  5. Step 5: Solve for x
    x = 80,411,631,217,030,560/312,130,411.22
  6. Step 6: Final answer
    x = 257,621,905.22

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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.