Home / 13,290,681.80-19,936,022.70-8,188,848.20

Finding the Fourth Proportional to 13,290,681.80, 19,936,022.70 and 8,188,848.20

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Solution

The fourth proportional to 13,290,681.80, 19,936,022.70 and 8,188,848.20 is: 12,283,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,681.80 : 19,936,022.70 = 8,188,848.20 : x
  2. Step 2: Convert to fraction form
    13,290,681.80/19,936,022.70 = 8,188,848.20/x
  3. Step 3: Cross multiply
    13,290,681.80x = 19,936,022.70 × 8,188,848.20
  4. Step 4: Simplify right side
    13,290,681.80x = 163,253,063,602,054.12
  5. Step 5: Solve for x
    x = 163,253,063,602,054.12/13,290,681.80
  6. Step 6: Final answer
    x = 12,283,272.30

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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.