Home / 28,324,521.32-42,325,538.11-21,267,632.06

Finding the Fourth Proportional to 28,324,521.32, 42,325,538.11 and 21,267,632.06

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Solution

The fourth proportional to 28,324,521.32, 42,325,538.11 and 21,267,632.06 is: 31,780,377.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324,521.32 : 42,325,538.11 = 21,267,632.06 : x
  2. Step 2: Convert to fraction form
    28,324,521.32/42,325,538.11 = 21,267,632.06/x
  3. Step 3: Cross multiply
    28,324,521.32x = 42,325,538.11 × 21,267,632.06
  4. Step 4: Simplify right side
    28,324,521.32x = 900,163,971,158,649.50
  5. Step 5: Solve for x
    x = 900,163,971,158,649.50/28,324,521.32
  6. Step 6: Final answer
    x = 31,780,377.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.