Home / 12,872,720.76-19,317,054.42-7,483,907.16

Finding the Fourth Proportional to 12,872,720.76, 19,317,054.42 and 7,483,907.16

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Solution

The fourth proportional to 12,872,720.76, 19,317,054.42 and 7,483,907.16 is: 11,230,496.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872,720.76 : 19,317,054.42 = 7,483,907.16 : x
  2. Step 2: Convert to fraction form
    12,872,720.76/19,317,054.42 = 7,483,907.16/x
  3. Step 3: Cross multiply
    12,872,720.76x = 19,317,054.42 × 7,483,907.16
  4. Step 4: Simplify right side
    12,872,720.76x = 144,567,041,883,947.66
  5. Step 5: Solve for x
    x = 144,567,041,883,947.66/12,872,720.76
  6. Step 6: Final answer
    x = 11,230,496.22

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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.