Home / 328,074,029.18-492,029,135.15-128,693,838.58

Finding the Fourth Proportional to 328,074,029.18, 492,029,135.15 and 128,693,838.58

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Solution

The fourth proportional to 328,074,029.18, 492,029,135.15 and 128,693,838.58 is: 193,008,627.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,074,029.18 : 492,029,135.15 = 128,693,838.58 : x
  2. Step 2: Convert to fraction form
    328,074,029.18/492,029,135.15 = 128,693,838.58/x
  3. Step 3: Cross multiply
    328,074,029.18x = 492,029,135.15 × 128,693,838.58
  4. Step 4: Simplify right side
    328,074,029.18x = 63,321,118,094,190,240
  5. Step 5: Solve for x
    x = 63,321,118,094,190,240/328,074,029.18
  6. Step 6: Final answer
    x = 193,008,627.51

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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.