Home / 232,443,834.21-320,787,052.11-128,021,881.50

Finding the Fourth Proportional to 232,443,834.21, 320,787,052.11 and 128,021,881.50

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Solution

The fourth proportional to 232,443,834.21, 320,787,052.11 and 128,021,881.50 is: 176,678,216.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,443,834.21 : 320,787,052.11 = 128,021,881.50 : x
  2. Step 2: Convert to fraction form
    232,443,834.21/320,787,052.11 = 128,021,881.50/x
  3. Step 3: Cross multiply
    232,443,834.21x = 320,787,052.11 × 128,021,881.50
  4. Step 4: Simplify right side
    232,443,834.21x = 41,067,761,971,960,744
  5. Step 5: Solve for x
    x = 41,067,761,971,960,744/232,443,834.21
  6. Step 6: Final answer
    x = 176,678,216.10

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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.