Home / 939,053,628.72-1,408,625,742.96-308,771,731.80

Finding the Fourth Proportional to 939,053,628.72, 1,408,625,742.96 and 308,771,731.80

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Solution

The fourth proportional to 939,053,628.72, 1,408,625,742.96 and 308,771,731.80 is: 463,172,492.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,053,628.72 : 1,408,625,742.96 = 308,771,731.80 : x
  2. Step 2: Convert to fraction form
    939,053,628.72/1,408,625,742.96 = 308,771,731.80/x
  3. Step 3: Cross multiply
    939,053,628.72x = 1,408,625,742.96 × 308,771,731.80
  4. Step 4: Simplify right side
    939,053,628.72x = 434,943,810,111,820,864
  5. Step 5: Solve for x
    x = 434,943,810,111,820,864/939,053,628.72
  6. Step 6: Final answer
    x = 463,172,492.83

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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.