Home / 12,769,570.08-19,137,720.96-5,187,672

Finding the Fourth Proportional to 12,769,570.08, 19,137,720.96 and 5,187,672

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Solution

The fourth proportional to 12,769,570.08, 19,137,720.96 and 5,187,672 is: 7,774,750.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769,570.08 : 19,137,720.96 = 5,187,672 : x
  2. Step 2: Convert to fraction form
    12,769,570.08/19,137,720.96 = 5,187,672/x
  3. Step 3: Cross multiply
    12,769,570.08x = 19,137,720.96 × 5,187,672
  4. Step 4: Simplify right side
    12,769,570.08x = 99,280,219,168,005.12
  5. Step 5: Solve for x
    x = 99,280,219,168,005.12/12,769,570.08
  6. Step 6: Final answer
    x = 7,774,750.33

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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.