Home / 839,809,340.20-1,259,714,010.30-664,457,429.80

Finding the Fourth Proportional to 839,809,340.20, 1,259,714,010.30 and 664,457,429.80

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Solution

The fourth proportional to 839,809,340.20, 1,259,714,010.30 and 664,457,429.80 is: 996,686,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,809,340.20 : 1,259,714,010.30 = 664,457,429.80 : x
  2. Step 2: Convert to fraction form
    839,809,340.20/1,259,714,010.30 = 664,457,429.80/x
  3. Step 3: Cross multiply
    839,809,340.20x = 1,259,714,010.30 × 664,457,429.80
  4. Step 4: Simplify right side
    839,809,340.20x = 837,026,333,566,988,672
  5. Step 5: Solve for x
    x = 837,026,333,566,988,672/839,809,340.20
  6. Step 6: Final answer
    x = 996,686,144.70

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1.5x scale

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.