Home / 219,440,493.15-302,830,810.47-120,320,989.38

Finding the Fourth Proportional to 219,440,493.15, 302,830,810.47 and 120,320,989.38

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Solution

The fourth proportional to 219,440,493.15, 302,830,810.47 and 120,320,989.38 is: 166,044,571.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,440,493.15 : 302,830,810.47 = 120,320,989.38 : x
  2. Step 2: Convert to fraction form
    219,440,493.15/302,830,810.47 = 120,320,989.38/x
  3. Step 3: Cross multiply
    219,440,493.15x = 302,830,810.47 × 120,320,989.38
  4. Step 4: Simplify right side
    219,440,493.15x = 36,436,902,730,497,664
  5. Step 5: Solve for x
    x = 36,436,902,730,497,664/219,440,493.15
  6. Step 6: Final answer
    x = 166,044,571.84

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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.