Home / 12,402,538.21-17,115,054.80-6,820,736.55

Finding the Fourth Proportional to 12,402,538.21, 17,115,054.80 and 6,820,736.55

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Solution

The fourth proportional to 12,402,538.21, 17,115,054.80 and 6,820,736.55 is: 9,412,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402,538.21 : 17,115,054.80 = 6,820,736.55 : x
  2. Step 2: Convert to fraction form
    12,402,538.21/17,115,054.80 = 6,820,736.55/x
  3. Step 3: Cross multiply
    12,402,538.21x = 17,115,054.80 × 6,820,736.55
  4. Step 4: Simplify right side
    12,402,538.21x = 116,737,279,829,612.94
  5. Step 5: Solve for x
    x = 116,737,279,829,612.94/12,402,538.21
  6. Step 6: Final answer
    x = 9,412,370.10

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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.