Home / 12,475,907.80-18,693,741.30-7,068,477.40

Finding the Fourth Proportional to 12,475,907.80, 18,693,741.30 and 7,068,477.40

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Solution

The fourth proportional to 12,475,907.80, 18,693,741.30 and 7,068,477.40 is: 10,591,316.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475,907.80 : 18,693,741.30 = 7,068,477.40 : x
  2. Step 2: Convert to fraction form
    12,475,907.80/18,693,741.30 = 7,068,477.40/x
  3. Step 3: Cross multiply
    12,475,907.80x = 18,693,741.30 × 7,068,477.40
  4. Step 4: Simplify right side
    12,475,907.80x = 132,136,287,900,496.62
  5. Step 5: Solve for x
    x = 132,136,287,900,496.62/12,475,907.80
  6. Step 6: Final answer
    x = 10,591,316.48

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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.