Home / 219,440,509.12-302,830,832.64-120,321,005.32

Finding the Fourth Proportional to 219,440,509.12, 302,830,832.64 and 120,321,005.32

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Solution

The fourth proportional to 219,440,509.12, 302,830,832.64 and 120,321,005.32 is: 166,044,593.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,440,509.12 : 302,830,832.64 = 120,321,005.32 : x
  2. Step 2: Convert to fraction form
    219,440,509.12/302,830,832.64 = 120,321,005.32/x
  3. Step 3: Cross multiply
    219,440,509.12x = 302,830,832.64 × 120,321,005.32
  4. Step 4: Simplify right side
    219,440,509.12x = 36,436,910,225,137,464
  5. Step 5: Solve for x
    x = 36,436,910,225,137,464/219,440,509.12
  6. Step 6: Final answer
    x = 166,044,593.91

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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.