Home / 429,055,390.35-643,585,254.89-133,925,770.58

Finding the Fourth Proportional to 429,055,390.35, 643,585,254.89 and 133,925,770.58

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Solution

The fourth proportional to 429,055,390.35, 643,585,254.89 and 133,925,770.58 is: 200,889,333.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,055,390.35 : 643,585,254.89 = 133,925,770.58 : x
  2. Step 2: Convert to fraction form
    429,055,390.35/643,585,254.89 = 133,925,770.58/x
  3. Step 3: Cross multiply
    429,055,390.35x = 643,585,254.89 × 133,925,770.58
  4. Step 4: Simplify right side
    429,055,390.35x = 86,192,651,191,181,408
  5. Step 5: Solve for x
    x = 86,192,651,191,181,408/429,055,390.35
  6. Step 6: Final answer
    x = 200,889,333.01

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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.