Home / 54,019,647.42-81,029,678.90-13,079,018.36

Finding the Fourth Proportional to 54,019,647.42, 81,029,678.90 and 13,079,018.36

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Solution

The fourth proportional to 54,019,647.42, 81,029,678.90 and 13,079,018.36 is: 19,618,577.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,019,647.42 : 81,029,678.90 = 13,079,018.36 : x
  2. Step 2: Convert to fraction form
    54,019,647.42/81,029,678.90 = 13,079,018.36/x
  3. Step 3: Cross multiply
    54,019,647.42x = 81,029,678.90 × 13,079,018.36
  4. Step 4: Simplify right side
    54,019,647.42x = 1,059,788,657,567,461.12
  5. Step 5: Solve for x
    x = 1,059,788,657,567,461.12/54,019,647.42
  6. Step 6: Final answer
    x = 19,618,577.84

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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.