Home / 28,209,752.46-38,946,013.11-21,670,534.98

Finding the Fourth Proportional to 28,209,752.46, 38,946,013.11 and 21,670,534.98

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Solution

The fourth proportional to 28,209,752.46, 38,946,013.11 and 21,670,534.98 is: 29,918,055.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209,752.46 : 38,946,013.11 = 21,670,534.98 : x
  2. Step 2: Convert to fraction form
    28,209,752.46/38,946,013.11 = 21,670,534.98/x
  3. Step 3: Cross multiply
    28,209,752.46x = 38,946,013.11 × 21,670,534.98
  4. Step 4: Simplify right side
    28,209,752.46x = 843,980,939,431,793.62
  5. Step 5: Solve for x
    x = 843,980,939,431,793.62/28,209,752.46
  6. Step 6: Final answer
    x = 29,918,055.49

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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.