Home / 18,721,881.80-28,082,822.70-4,538,457.80

Finding the Fourth Proportional to 18,721,881.80, 28,082,822.70 and 4,538,457.80

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Solution

The fourth proportional to 18,721,881.80, 28,082,822.70 and 4,538,457.80 is: 6,807,686.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,881.80 : 28,082,822.70 = 4,538,457.80 : x
  2. Step 2: Convert to fraction form
    18,721,881.80/28,082,822.70 = 4,538,457.80/x
  3. Step 3: Cross multiply
    18,721,881.80x = 28,082,822.70 × 4,538,457.80
  4. Step 4: Simplify right side
    18,721,881.80x = 127,452,705,728,832.05
  5. Step 5: Solve for x
    x = 127,452,705,728,832.05/18,721,881.80
  6. Step 6: Final answer
    x = 6,807,686.70

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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.