Home / 12,643,075.20-18,936,619.20-10,403,587.20

Finding the Fourth Proportional to 12,643,075.20, 18,936,619.20 and 10,403,587.20

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Solution

The fourth proportional to 12,643,075.20, 18,936,619.20 and 10,403,587.20 is: 15,582,345.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643,075.20 : 18,936,619.20 = 10,403,587.20 : x
  2. Step 2: Convert to fraction form
    12,643,075.20/18,936,619.20 = 10,403,587.20/x
  3. Step 3: Cross multiply
    12,643,075.20x = 18,936,619.20 × 10,403,587.20
  4. Step 4: Simplify right side
    12,643,075.20x = 197,008,769,120,394.22
  5. Step 5: Solve for x
    x = 197,008,769,120,394.22/12,643,075.20
  6. Step 6: Final answer
    x = 15,582,345.75

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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.