Home / 1,152,291,138.04-1,728,510,978.72-405,215,262.28

Finding the Fourth Proportional to 1,152,291,138.04, 1,728,510,978.72 and 405,215,262.28

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Solution

The fourth proportional to 1,152,291,138.04, 1,728,510,978.72 and 405,215,262.28 is: 607,849,011.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,291,138.04 : 1,728,510,978.72 = 405,215,262.28 : x
  2. Step 2: Convert to fraction form
    1,152,291,138.04/1,728,510,978.72 = 405,215,262.28/x
  3. Step 3: Cross multiply
    1,152,291,138.04x = 1,728,510,978.72 × 405,215,262.28
  4. Step 4: Simplify right side
    1,152,291,138.04x = 700,419,029,595,884,288
  5. Step 5: Solve for x
    x = 700,419,029,595,884,288/1,152,291,138.04
  6. Step 6: Final answer
    x = 607,849,011.83

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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.