Home / 429,623,143.20-644,434,714.80-122,925,261.60

Finding the Fourth Proportional to 429,623,143.20, 644,434,714.80 and 122,925,261.60

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Solution

The fourth proportional to 429,623,143.20, 644,434,714.80 and 122,925,261.60 is: 184,387,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,623,143.20 : 644,434,714.80 = 122,925,261.60 : x
  2. Step 2: Convert to fraction form
    429,623,143.20/644,434,714.80 = 122,925,261.60/x
  3. Step 3: Cross multiply
    429,623,143.20x = 644,434,714.80 × 122,925,261.60
  4. Step 4: Simplify right side
    429,623,143.20x = 79,217,305,900,911,376
  5. Step 5: Solve for x
    x = 79,217,305,900,911,376/429,623,143.20
  6. Step 6: Final answer
    x = 184,387,892.40

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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.