Home / 311,980,074.54-430,980,953.89-249,173,712.84

Finding the Fourth Proportional to 311,980,074.54, 430,980,953.89 and 249,173,712.84

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Solution

The fourth proportional to 311,980,074.54, 430,980,953.89 and 249,173,712.84 is: 344,217,894.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,980,074.54 : 430,980,953.89 = 249,173,712.84 : x
  2. Step 2: Convert to fraction form
    311,980,074.54/430,980,953.89 = 249,173,712.84/x
  3. Step 3: Cross multiply
    311,980,074.54x = 430,980,953.89 × 249,173,712.84
  4. Step 4: Simplify right side
    311,980,074.54x = 107,389,124,444,096,144
  5. Step 5: Solve for x
    x = 107,389,124,444,096,144/311,980,074.54
  6. Step 6: Final answer
    x = 344,217,894.69

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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.