Home / 430,345,871.68-645,516,660.56-168,057,072.32

Finding the Fourth Proportional to 430,345,871.68, 645,516,660.56 and 168,057,072.32

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Solution

The fourth proportional to 430,345,871.68, 645,516,660.56 and 168,057,072.32 is: 252,084,770.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,345,871.68 : 645,516,660.56 = 168,057,072.32 : x
  2. Step 2: Convert to fraction form
    430,345,871.68/645,516,660.56 = 168,057,072.32/x
  3. Step 3: Cross multiply
    430,345,871.68x = 645,516,660.56 × 168,057,072.32
  4. Step 4: Simplify right side
    430,345,871.68x = 108,483,640,107,496,800
  5. Step 5: Solve for x
    x = 108,483,640,107,496,800/430,345,871.68
  6. Step 6: Final answer
    x = 252,084,770.06

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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.