Home / 215,157,831.84-322,492,112.72-189,199,262.88

Finding the Fourth Proportional to 215,157,831.84, 322,492,112.72 and 189,199,262.88

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Solution

The fourth proportional to 215,157,831.84, 322,492,112.72 and 189,199,262.88 is: 283,583,774.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,157,831.84 : 322,492,112.72 = 189,199,262.88 : x
  2. Step 2: Convert to fraction form
    215,157,831.84/322,492,112.72 = 189,199,262.88/x
  3. Step 3: Cross multiply
    215,157,831.84x = 322,492,112.72 × 189,199,262.88
  4. Step 4: Simplify right side
    215,157,831.84x = 61,015,270,011,237,872
  5. Step 5: Solve for x
    x = 61,015,270,011,237,872/215,157,831.84
  6. Step 6: Final answer
    x = 283,583,774.24

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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.