Home / 289,935,835.29-400,111,511.90-159,555,643.29

Finding the Fourth Proportional to 289,935,835.29, 400,111,511.90 and 159,555,643.29

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Solution

The fourth proportional to 289,935,835.29, 400,111,511.90 and 159,555,643.29 is: 220,186,820.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,935,835.29 : 400,111,511.90 = 159,555,643.29 : x
  2. Step 2: Convert to fraction form
    289,935,835.29/400,111,511.90 = 159,555,643.29/x
  3. Step 3: Cross multiply
    289,935,835.29x = 400,111,511.90 × 159,555,643.29
  4. Step 4: Simplify right side
    289,935,835.29x = 63,840,049,668,141,208
  5. Step 5: Solve for x
    x = 63,840,049,668,141,208/289,935,835.29
  6. Step 6: Final answer
    x = 220,186,820.32

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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.