Home / 315,022,029.84-434,730,481.20-173,893,328.64

Finding the Fourth Proportional to 315,022,029.84, 434,730,481.20 and 173,893,328.64

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Solution

The fourth proportional to 315,022,029.84, 434,730,481.20 and 173,893,328.64 is: 239,972,837.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,022,029.84 : 434,730,481.20 = 173,893,328.64 : x
  2. Step 2: Convert to fraction form
    315,022,029.84/434,730,481.20 = 173,893,328.64/x
  3. Step 3: Cross multiply
    315,022,029.84x = 434,730,481.20 × 173,893,328.64
  4. Step 4: Simplify right side
    315,022,029.84x = 75,596,730,437,136,928
  5. Step 5: Solve for x
    x = 75,596,730,437,136,928/315,022,029.84
  6. Step 6: Final answer
    x = 239,972,837.69

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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.