Home / 74,660,657.13-111,990,460.82-20,807,969.13

Finding the Fourth Proportional to 74,660,657.13, 111,990,460.82 and 20,807,969.13

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Solution

The fourth proportional to 74,660,657.13, 111,990,460.82 and 20,807,969.13 is: 31,211,807.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,660,657.13 : 111,990,460.82 = 20,807,969.13 : x
  2. Step 2: Convert to fraction form
    74,660,657.13/111,990,460.82 = 20,807,969.13/x
  3. Step 3: Cross multiply
    74,660,657.13x = 111,990,460.82 × 20,807,969.13
  4. Step 4: Simplify right side
    74,660,657.13x = 2,330,294,051,492,994.50
  5. Step 5: Solve for x
    x = 2,330,294,051,492,994.50/74,660,657.13
  6. Step 6: Final answer
    x = 31,211,807.41

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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.