Home / 28,512,009.90-42,778,512.45-11,484,902.70

Finding the Fourth Proportional to 28,512,009.90, 42,778,512.45 and 11,484,902.70

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Solution

The fourth proportional to 28,512,009.90, 42,778,512.45 and 11,484,902.70 is: 17,231,582.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512,009.90 : 42,778,512.45 = 11,484,902.70 : x
  2. Step 2: Convert to fraction form
    28,512,009.90/42,778,512.45 = 11,484,902.70/x
  3. Step 3: Cross multiply
    28,512,009.90x = 42,778,512.45 × 11,484,902.70
  4. Step 4: Simplify right side
    28,512,009.90x = 491,307,053,138,988.62
  5. Step 5: Solve for x
    x = 491,307,053,138,988.62/28,512,009.90
  6. Step 6: Final answer
    x = 17,231,582.58

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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.