Home / 708,431,228.46-977,587,855.98-407,026,236.78

Finding the Fourth Proportional to 708,431,228.46, 977,587,855.98 and 407,026,236.78

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Solution

The fourth proportional to 708,431,228.46, 977,587,855.98 and 407,026,236.78 is: 561,669,065.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,431,228.46 : 977,587,855.98 = 407,026,236.78 : x
  2. Step 2: Convert to fraction form
    708,431,228.46/977,587,855.98 = 407,026,236.78/x
  3. Step 3: Cross multiply
    708,431,228.46x = 977,587,855.98 × 407,026,236.78
  4. Step 4: Simplify right side
    708,431,228.46x = 397,903,906,141,368,000
  5. Step 5: Solve for x
    x = 397,903,906,141,368,000/708,431,228.46
  6. Step 6: Final answer
    x = 561,669,065.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.