Home / 15,374,075.96-21,216,477.02-9,179,663.91

Finding the Fourth Proportional to 15,374,075.96, 21,216,477.02 and 9,179,663.91

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Solution

The fourth proportional to 15,374,075.96, 21,216,477.02 and 9,179,663.91 is: 12,668,086.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,374,075.96 : 21,216,477.02 = 9,179,663.91 : x
  2. Step 2: Convert to fraction form
    15,374,075.96/21,216,477.02 = 9,179,663.91/x
  3. Step 3: Cross multiply
    15,374,075.96x = 21,216,477.02 × 9,179,663.91
  4. Step 4: Simplify right side
    15,374,075.96x = 194,760,128,351,940.03
  5. Step 5: Solve for x
    x = 194,760,128,351,940.03/15,374,075.96
  6. Step 6: Final answer
    x = 12,668,086.78

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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.