Home / 221,836,818.54-306,031,666.83-143,545,651.98

Finding the Fourth Proportional to 221,836,818.54, 306,031,666.83 and 143,545,651.98

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Solution

The fourth proportional to 221,836,818.54, 306,031,666.83 and 143,545,651.98 is: 198,026,258.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,836,818.54 : 306,031,666.83 = 143,545,651.98 : x
  2. Step 2: Convert to fraction form
    221,836,818.54/306,031,666.83 = 143,545,651.98/x
  3. Step 3: Cross multiply
    221,836,818.54x = 306,031,666.83 × 143,545,651.98
  4. Step 4: Simplify right side
    221,836,818.54x = 43,929,515,141,638,488
  5. Step 5: Solve for x
    x = 43,929,515,141,638,488/221,836,818.54
  6. Step 6: Final answer
    x = 198,026,258.36

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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.