Home / 5,101,387.20-7,040,232.48-2,809,547.28

Finding the Fourth Proportional to 5,101,387.20, 7,040,232.48 and 2,809,547.28

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Solution

The fourth proportional to 5,101,387.20, 7,040,232.48 and 2,809,547.28 is: 3,877,350.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101,387.20 : 7,040,232.48 = 2,809,547.28 : x
  2. Step 2: Convert to fraction form
    5,101,387.20/7,040,232.48 = 2,809,547.28/x
  3. Step 3: Cross multiply
    5,101,387.20x = 7,040,232.48 × 2,809,547.28
  4. Step 4: Simplify right side
    5,101,387.20x = 19,779,866,014,751.65
  5. Step 5: Solve for x
    x = 19,779,866,014,751.65/5,101,387.20
  6. Step 6: Final answer
    x = 3,877,350.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.