Home / 440,116,511.80-660,174,767.70-210,533,999.80

Finding the Fourth Proportional to 440,116,511.80, 660,174,767.70 and 210,533,999.80

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Solution

The fourth proportional to 440,116,511.80, 660,174,767.70 and 210,533,999.80 is: 315,800,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,116,511.80 : 660,174,767.70 = 210,533,999.80 : x
  2. Step 2: Convert to fraction form
    440,116,511.80/660,174,767.70 = 210,533,999.80/x
  3. Step 3: Cross multiply
    440,116,511.80x = 660,174,767.70 × 210,533,999.80
  4. Step 4: Simplify right side
    440,116,511.80x = 138,989,234,410,916,864
  5. Step 5: Solve for x
    x = 138,989,234,410,916,864/440,116,511.80
  6. Step 6: Final answer
    x = 315,800,999.70

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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.