Home / 18,333,278.37-25,290,437.02-12,453,215.40

Finding the Fourth Proportional to 18,333,278.37, 25,290,437.02 and 12,453,215.40

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Solution

The fourth proportional to 18,333,278.37, 25,290,437.02 and 12,453,215.40 is: 17,178,992.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,333,278.37 : 25,290,437.02 = 12,453,215.40 : x
  2. Step 2: Convert to fraction form
    18,333,278.37/25,290,437.02 = 12,453,215.40/x
  3. Step 3: Cross multiply
    18,333,278.37x = 25,290,437.02 × 12,453,215.40
  4. Step 4: Simplify right side
    18,333,278.37x = 314,947,259,739,061.06
  5. Step 5: Solve for x
    x = 314,947,259,739,061.06/18,333,278.37
  6. Step 6: Final answer
    x = 17,178,992.94

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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.