Home / 18,872,699.48-28,319,801.06-7,356,668.25

Finding the Fourth Proportional to 18,872,699.48, 28,319,801.06 and 7,356,668.25

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Solution

The fourth proportional to 18,872,699.48, 28,319,801.06 and 7,356,668.25 is: 11,039,193.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,872,699.48 : 28,319,801.06 = 7,356,668.25 : x
  2. Step 2: Convert to fraction form
    18,872,699.48/28,319,801.06 = 7,356,668.25/x
  3. Step 3: Cross multiply
    18,872,699.48x = 28,319,801.06 × 7,356,668.25
  4. Step 4: Simplify right side
    18,872,699.48x = 208,339,381,304,418.34
  5. Step 5: Solve for x
    x = 208,339,381,304,418.34/18,872,699.48
  6. Step 6: Final answer
    x = 11,039,193.49

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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.