Home / 13,578,264.96-18,738,486.72-7,467,158.40

Finding the Fourth Proportional to 13,578,264.96, 18,738,486.72 and 7,467,158.40

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Solution

The fourth proportional to 13,578,264.96, 18,738,486.72 and 7,467,158.40 is: 10,304,943.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,264.96 : 18,738,486.72 = 7,467,158.40 : x
  2. Step 2: Convert to fraction form
    13,578,264.96/18,738,486.72 = 7,467,158.40/x
  3. Step 3: Cross multiply
    13,578,264.96x = 18,738,486.72 × 7,467,158.40
  4. Step 4: Simplify right side
    13,578,264.96x = 139,923,248,514,536.45
  5. Step 5: Solve for x
    x = 139,923,248,514,536.45/13,578,264.96
  6. Step 6: Final answer
    x = 10,304,943.15

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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.