Home / 145,649,942.10-218,489,524.74-42,021,713.66

Finding the Fourth Proportional to 145,649,942.10, 218,489,524.74 and 42,021,713.66

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Solution

The fourth proportional to 145,649,942.10, 218,489,524.74 and 42,021,713.66 is: 63,036,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,649,942.10 : 218,489,524.74 = 42,021,713.66 : x
  2. Step 2: Convert to fraction form
    145,649,942.10/218,489,524.74 = 42,021,713.66/x
  3. Step 3: Cross multiply
    145,649,942.10x = 218,489,524.74 × 42,021,713.66
  4. Step 4: Simplify right side
    145,649,942.10x = 9,181,304,245,241,318
  5. Step 5: Solve for x
    x = 9,181,304,245,241,318/145,649,942.10
  6. Step 6: Final answer
    x = 63,036,786.10

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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.