Home / 18,731,081.80-28,117,617.90-14,490,051.40

Finding the Fourth Proportional to 18,731,081.80, 28,117,617.90 and 14,490,051.40

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Solution

The fourth proportional to 18,731,081.80, 28,117,617.90 and 14,490,051.40 is: 21,751,318.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731,081.80 : 28,117,617.90 = 14,490,051.40 : x
  2. Step 2: Convert to fraction form
    18,731,081.80/28,117,617.90 = 14,490,051.40/x
  3. Step 3: Cross multiply
    18,731,081.80x = 28,117,617.90 × 14,490,051.40
  4. Step 4: Simplify right side
    18,731,081.80x = 407,425,728,616,560.06
  5. Step 5: Solve for x
    x = 407,425,728,616,560.06/18,731,081.80
  6. Step 6: Final answer
    x = 21,751,318.64

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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.