Home / 638,815,249-958,126,762.14-178,693,777

Finding the Fourth Proportional to 638,815,249, 958,126,762.14 and 178,693,777

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Solution

The fourth proportional to 638,815,249, 958,126,762.14 and 178,693,777 is: 268,013,780.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,815,249 : 958,126,762.14 = 178,693,777 : x
  2. Step 2: Convert to fraction form
    638,815,249/958,126,762.14 = 178,693,777/x
  3. Step 3: Cross multiply
    638,815,249x = 958,126,762.14 × 178,693,777
  4. Step 4: Simplify right side
    638,815,249x = 171,211,289,971,577,216
  5. Step 5: Solve for x
    x = 171,211,289,971,577,216/638,815,249
  6. Step 6: Final answer
    x = 268,013,780.57

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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.