Home / 688,293,800.67-1,032,642,167.63-221,945,845.67

Finding the Fourth Proportional to 688,293,800.67, 1,032,642,167.63 and 221,945,845.67

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Solution

The fourth proportional to 688,293,800.67, 1,032,642,167.63 and 221,945,845.67 is: 332,983,733.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,293,800.67 : 1,032,642,167.63 = 221,945,845.67 : x
  2. Step 2: Convert to fraction form
    688,293,800.67/1,032,642,167.63 = 221,945,845.67/x
  3. Step 3: Cross multiply
    688,293,800.67x = 1,032,642,167.63 × 221,945,845.67
  4. Step 4: Simplify right side
    688,293,800.67x = 229,190,639,166,741,696
  5. Step 5: Solve for x
    x = 229,190,639,166,741,696/688,293,800.67
  6. Step 6: Final answer
    x = 332,983,733.03

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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.