Home / 429,396,964.34-644,095,348.08-122,689,080.86

Finding the Fourth Proportional to 429,396,964.34, 644,095,348.08 and 122,689,080.86

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Solution

The fourth proportional to 429,396,964.34, 644,095,348.08 and 122,689,080.86 is: 184,033,593.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,396,964.34 : 644,095,348.08 = 122,689,080.86 : x
  2. Step 2: Convert to fraction form
    429,396,964.34/644,095,348.08 = 122,689,080.86/x
  3. Step 3: Cross multiply
    429,396,964.34x = 644,095,348.08 × 122,689,080.86
  4. Step 4: Simplify right side
    429,396,964.34x = 79,023,466,242,136,976
  5. Step 5: Solve for x
    x = 79,023,466,242,136,976/429,396,964.34
  6. Step 6: Final answer
    x = 184,033,593.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.