Home / 289,762,717.94-399,836,256.54-195,881,132.12

Finding the Fourth Proportional to 289,762,717.94, 399,836,256.54 and 195,881,132.12

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Solution

The fourth proportional to 289,762,717.94, 399,836,256.54 and 195,881,132.12 is: 270,291,427.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,762,717.94 : 399,836,256.54 = 195,881,132.12 : x
  2. Step 2: Convert to fraction form
    289,762,717.94/399,836,256.54 = 195,881,132.12/x
  3. Step 3: Cross multiply
    289,762,717.94x = 399,836,256.54 × 195,881,132.12
  4. Step 4: Simplify right side
    289,762,717.94x = 78,320,378,593,677,968
  5. Step 5: Solve for x
    x = 78,320,378,593,677,968/289,762,717.94
  6. Step 6: Final answer
    x = 270,291,427.24

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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.