Home / 820,962,818.59-1,231,602,663.72-268,116,620.67

Finding the Fourth Proportional to 820,962,818.59, 1,231,602,663.72 and 268,116,620.67

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Solution

The fourth proportional to 820,962,818.59, 1,231,602,663.72 and 268,116,620.67 is: 402,226,674.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,962,818.59 : 1,231,602,663.72 = 268,116,620.67 : x
  2. Step 2: Convert to fraction form
    820,962,818.59/1,231,602,663.72 = 268,116,620.67/x
  3. Step 3: Cross multiply
    820,962,818.59x = 1,231,602,663.72 × 268,116,620.67
  4. Step 4: Simplify right side
    820,962,818.59x = 330,213,144,205,795,648
  5. Step 5: Solve for x
    x = 330,213,144,205,795,648/820,962,818.59
  6. Step 6: Final answer
    x = 402,226,674.25

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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.