Home / 13,320,590.04-18,381,895.38-8,361,698.76

Finding the Fourth Proportional to 13,320,590.04, 18,381,895.38 and 8,361,698.76

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Solution

The fourth proportional to 13,320,590.04, 18,381,895.38 and 8,361,698.76 is: 11,538,818.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,590.04 : 18,381,895.38 = 8,361,698.76 : x
  2. Step 2: Convert to fraction form
    13,320,590.04/18,381,895.38 = 8,361,698.76/x
  3. Step 3: Cross multiply
    13,320,590.04x = 18,381,895.38 × 8,361,698.76
  4. Step 4: Simplify right side
    13,320,590.04x = 153,703,871,805,395.72
  5. Step 5: Solve for x
    x = 153,703,871,805,395.72/13,320,590.04
  6. Step 6: Final answer
    x = 11,538,818.58

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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.