Home / 28,608,128.40-42,912,192.60-17,837,590.80

Finding the Fourth Proportional to 28,608,128.40, 42,912,192.60 and 17,837,590.80

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Solution

The fourth proportional to 28,608,128.40, 42,912,192.60 and 17,837,590.80 is: 26,756,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608,128.40 : 42,912,192.60 = 17,837,590.80 : x
  2. Step 2: Convert to fraction form
    28,608,128.40/42,912,192.60 = 17,837,590.80/x
  3. Step 3: Cross multiply
    28,608,128.40x = 42,912,192.60 × 17,837,590.80
  4. Step 4: Simplify right side
    28,608,128.40x = 765,450,131,929,588.12
  5. Step 5: Solve for x
    x = 765,450,131,929,588.12/28,608,128.40
  6. Step 6: Final answer
    x = 26,756,386.20

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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.