Home / 13,681,731.98-18,880,789.34-7,486,779.42

Finding the Fourth Proportional to 13,681,731.98, 18,880,789.34 and 7,486,779.42

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Solution

The fourth proportional to 13,681,731.98, 18,880,789.34 and 7,486,779.42 is: 10,331,755.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,681,731.98 : 18,880,789.34 = 7,486,779.42 : x
  2. Step 2: Convert to fraction form
    13,681,731.98/18,880,789.34 = 7,486,779.42/x
  3. Step 3: Cross multiply
    13,681,731.98x = 18,880,789.34 × 7,486,779.42
  4. Step 4: Simplify right side
    13,681,731.98x = 141,356,305,026,633.50
  5. Step 5: Solve for x
    x = 141,356,305,026,633.50/13,681,731.98
  6. Step 6: Final answer
    x = 10,331,755.17

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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.