Home / 839,809,345.20-1,259,714,017.80-664,457,434.80

Finding the Fourth Proportional to 839,809,345.20, 1,259,714,017.80 and 664,457,434.80

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Solution

The fourth proportional to 839,809,345.20, 1,259,714,017.80 and 664,457,434.80 is: 996,686,152.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,809,345.20 : 1,259,714,017.80 = 664,457,434.80 : x
  2. Step 2: Convert to fraction form
    839,809,345.20/1,259,714,017.80 = 664,457,434.80/x
  3. Step 3: Cross multiply
    839,809,345.20x = 1,259,714,017.80 × 664,457,434.80
  4. Step 4: Simplify right side
    839,809,345.20x = 837,026,344,848,989,440
  5. Step 5: Solve for x
    x = 837,026,344,848,989,440/839,809,345.20
  6. Step 6: Final answer
    x = 996,686,152.20

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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.