Home / 288,716,910.48-398,392,511.40-164,965,602.96

Finding the Fourth Proportional to 288,716,910.48, 398,392,511.40 and 164,965,602.96

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Solution

The fourth proportional to 288,716,910.48, 398,392,511.40 and 164,965,602.96 is: 227,631,491.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,716,910.48 : 398,392,511.40 = 164,965,602.96 : x
  2. Step 2: Convert to fraction form
    288,716,910.48/398,392,511.40 = 164,965,602.96/x
  3. Step 3: Cross multiply
    288,716,910.48x = 398,392,511.40 × 164,965,602.96
  4. Step 4: Simplify right side
    288,716,910.48x = 65,721,060,857,849,672
  5. Step 5: Solve for x
    x = 65,721,060,857,849,672/288,716,910.48
  6. Step 6: Final answer
    x = 227,631,491.17

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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.