Home / 419,488,855.92-578,929,087.08-231,353,946.72

Finding the Fourth Proportional to 419,488,855.92, 578,929,087.08 and 231,353,946.72

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Solution

The fourth proportional to 419,488,855.92, 578,929,087.08 and 231,353,946.72 is: 319,287,454.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,488,855.92 : 578,929,087.08 = 231,353,946.72 : x
  2. Step 2: Convert to fraction form
    419,488,855.92/578,929,087.08 = 231,353,946.72/x
  3. Step 3: Cross multiply
    419,488,855.92x = 578,929,087.08 × 231,353,946.72
  4. Step 4: Simplify right side
    419,488,855.92x = 133,937,529,166,964,576
  5. Step 5: Solve for x
    x = 133,937,529,166,964,576/419,488,855.92
  6. Step 6: Final answer
    x = 319,287,454.90

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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.