Home / 839,376,043.70-1,259,064,065.55-664,024,133.30

Finding the Fourth Proportional to 839,376,043.70, 1,259,064,065.55 and 664,024,133.30

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Solution

The fourth proportional to 839,376,043.70, 1,259,064,065.55 and 664,024,133.30 is: 996,036,199.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,376,043.70 : 1,259,064,065.55 = 664,024,133.30 : x
  2. Step 2: Convert to fraction form
    839,376,043.70/1,259,064,065.55 = 664,024,133.30/x
  3. Step 3: Cross multiply
    839,376,043.70x = 1,259,064,065.55 × 664,024,133.30
  4. Step 4: Simplify right side
    839,376,043.70x = 836,048,924,896,013,056
  5. Step 5: Solve for x
    x = 836,048,924,896,013,056/839,376,043.70
  6. Step 6: Final answer
    x = 996,036,199.95

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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.