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Finding the Fourth Proportional to 288,734,663.70, 433,101,995.55 and 220,710,215.70

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Solution

The fourth proportional to 288,734,663.70, 433,101,995.55 and 220,710,215.70 is: 331,065,323.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,734,663.70 : 433,101,995.55 = 220,710,215.70 : x
  2. Step 2: Convert to fraction form
    288,734,663.70/433,101,995.55 = 220,710,215.70/x
  3. Step 3: Cross multiply
    288,734,663.70x = 433,101,995.55 × 220,710,215.70
  4. Step 4: Simplify right side
    288,734,663.70x = 95,590,034,857,940,944
  5. Step 5: Solve for x
    x = 95,590,034,857,940,944/288,734,663.70
  6. Step 6: Final answer
    x = 331,065,323.55

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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.