Home / 13,120,090.60-19,663,547.10-11,693,453.80

Finding the Fourth Proportional to 13,120,090.60, 19,663,547.10 and 11,693,453.80

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Solution

The fourth proportional to 13,120,090.60, 19,663,547.10 and 11,693,453.80 is: 17,525,395.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120,090.60 : 19,663,547.10 = 11,693,453.80 : x
  2. Step 2: Convert to fraction form
    13,120,090.60/19,663,547.10 = 11,693,453.80/x
  3. Step 3: Cross multiply
    13,120,090.60x = 19,663,547.10 × 11,693,453.80
  4. Step 4: Simplify right side
    13,120,090.60x = 229,934,779,557,974
  5. Step 5: Solve for x
    x = 229,934,779,557,974/13,120,090.60
  6. Step 6: Final answer
    x = 17,525,395.71

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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.