Home / 660,164,048.10-990,246,072.15-200,042,430.30

Finding the Fourth Proportional to 660,164,048.10, 990,246,072.15 and 200,042,430.30

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Solution

The fourth proportional to 660,164,048.10, 990,246,072.15 and 200,042,430.30 is: 300,063,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,164,048.10 : 990,246,072.15 = 200,042,430.30 : x
  2. Step 2: Convert to fraction form
    660,164,048.10/990,246,072.15 = 200,042,430.30/x
  3. Step 3: Cross multiply
    660,164,048.10x = 990,246,072.15 × 200,042,430.30
  4. Step 4: Simplify right side
    660,164,048.10x = 198,091,230,867,915,168
  5. Step 5: Solve for x
    x = 198,091,230,867,915,168/660,164,048.10
  6. Step 6: Final answer
    x = 300,063,645.45

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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.