Home / 129,392,257,740.12-194,109,242,403.48-39,855,209,493.96

Finding the Fourth Proportional to 129,392,257,740.12, 194,109,242,403.48 and 39,855,209,493.96

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Solution

The fourth proportional to 129,392,257,740.12, 194,109,242,403.48 and 39,855,209,493.96 is: 59,789,238,211.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,392,257,740.12 : 194,109,242,403.48 = 39,855,209,493.96 : x
  2. Step 2: Convert to fraction form
    129,392,257,740.12/194,109,242,403.48 = 39,855,209,493.96/x
  3. Step 3: Cross multiply
    129,392,257,740.12x = 194,109,242,403.48 × 39,855,209,493.96
  4. Step 4: Simplify right side
    129,392,257,740.12x = 7,736,264,520,704,559,415,296
  5. Step 5: Solve for x
    x = 7,736,264,520,704,559,415,296/129,392,257,740.12
  6. Step 6: Final answer
    x = 59,789,238,211.17

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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.