Home / 678,304,310,908.45-1,017,756,926,958-355,530,415,802.67

Finding the Fourth Proportional to 678,304,310,908.45, 1,017,756,926,958 and 355,530,415,802.67

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Solution

The fourth proportional to 678,304,310,908.45, 1,017,756,926,958 and 355,530,415,802.67 is: 533,453,108,889.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,304,310,908.45 : 1,017,756,926,958 = 355,530,415,802.67 : x
  2. Step 2: Convert to fraction form
    678,304,310,908.45/1,017,756,926,958 = 355,530,415,802.67/x
  3. Step 3: Cross multiply
    678,304,310,908.45x = 1,017,756,926,958 × 355,530,415,802.67
  4. Step 4: Simplify right side
    678,304,310,908.45x = 361,843,543,427,425,364,869,120
  5. Step 5: Solve for x
    x = 361,843,543,427,425,364,869,120/678,304,310,908.45
  6. Step 6: Final answer
    x = 533,453,108,889.74

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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.