Home / 726,783,133.80-1,090,174,700.70-420,673,117.80

Finding the Fourth Proportional to 726,783,133.80, 1,090,174,700.70 and 420,673,117.80

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Solution

The fourth proportional to 726,783,133.80, 1,090,174,700.70 and 420,673,117.80 is: 631,009,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,783,133.80 : 1,090,174,700.70 = 420,673,117.80 : x
  2. Step 2: Convert to fraction form
    726,783,133.80/1,090,174,700.70 = 420,673,117.80/x
  3. Step 3: Cross multiply
    726,783,133.80x = 1,090,174,700.70 × 420,673,117.80
  4. Step 4: Simplify right side
    726,783,133.80x = 458,607,190,290,150,848
  5. Step 5: Solve for x
    x = 458,607,190,290,150,848/726,783,133.80
  6. Step 6: Final answer
    x = 631,009,676.70

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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.