Home / 19,295,999.80-28,943,999.70-12,115,641.40

Finding the Fourth Proportional to 19,295,999.80, 28,943,999.70 and 12,115,641.40

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Solution

The fourth proportional to 19,295,999.80, 28,943,999.70 and 12,115,641.40 is: 18,173,462.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,295,999.80 : 28,943,999.70 = 12,115,641.40 : x
  2. Step 2: Convert to fraction form
    19,295,999.80/28,943,999.70 = 12,115,641.40/x
  3. Step 3: Cross multiply
    19,295,999.80x = 28,943,999.70 × 12,115,641.40
  4. Step 4: Simplify right side
    19,295,999.80x = 350,675,121,046,907.56
  5. Step 5: Solve for x
    x = 350,675,121,046,907.56/19,295,999.80
  6. Step 6: Final answer
    x = 18,173,462.10

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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.