Home / 354,287,286.40-531,430,929.60-263,588,022.40

Finding the Fourth Proportional to 354,287,286.40, 531,430,929.60 and 263,588,022.40

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Solution

The fourth proportional to 354,287,286.40, 531,430,929.60 and 263,588,022.40 is: 395,382,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,287,286.40 : 531,430,929.60 = 263,588,022.40 : x
  2. Step 2: Convert to fraction form
    354,287,286.40/531,430,929.60 = 263,588,022.40/x
  3. Step 3: Cross multiply
    354,287,286.40x = 531,430,929.60 × 263,588,022.40
  4. Step 4: Simplify right side
    354,287,286.40x = 140,078,827,775,457,632
  5. Step 5: Solve for x
    x = 140,078,827,775,457,632/354,287,286.40
  6. Step 6: Final answer
    x = 395,382,033.60

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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.