Home / 12,921,703.01-17,832,069.75-7,120,692.35

Finding the Fourth Proportional to 12,921,703.01, 17,832,069.75 and 7,120,692.35

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Solution

The fourth proportional to 12,921,703.01, 17,832,069.75 and 7,120,692.35 is: 9,826,621.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,703.01 : 17,832,069.75 = 7,120,692.35 : x
  2. Step 2: Convert to fraction form
    12,921,703.01/17,832,069.75 = 7,120,692.35/x
  3. Step 3: Cross multiply
    12,921,703.01x = 17,832,069.75 × 7,120,692.35
  4. Step 4: Simplify right side
    12,921,703.01x = 126,976,682,671,368.98
  5. Step 5: Solve for x
    x = 126,976,682,671,368.98/12,921,703.01
  6. Step 6: Final answer
    x = 9,826,621.35

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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.