Home / 279,604,291.68-385,856,481.60-154,160,989.74

Finding the Fourth Proportional to 279,604,291.68, 385,856,481.60 and 154,160,989.74

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Solution

The fourth proportional to 279,604,291.68, 385,856,481.60 and 154,160,989.74 is: 212,743,576.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,604,291.68 : 385,856,481.60 = 154,160,989.74 : x
  2. Step 2: Convert to fraction form
    279,604,291.68/385,856,481.60 = 154,160,989.74/x
  3. Step 3: Cross multiply
    279,604,291.68x = 385,856,481.60 × 154,160,989.74
  4. Step 4: Simplify right side
    279,604,291.68x = 59,484,017,101,050,104
  5. Step 5: Solve for x
    x = 59,484,017,101,050,104/279,604,291.68
  6. Step 6: Final answer
    x = 212,743,576.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.