Home / 13,348,918.56-18,420,996.48-7,547,821.68

Finding the Fourth Proportional to 13,348,918.56, 18,420,996.48 and 7,547,821.68

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Solution

The fourth proportional to 13,348,918.56, 18,420,996.48 and 7,547,821.68 is: 10,415,704.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348,918.56 : 18,420,996.48 = 7,547,821.68 : x
  2. Step 2: Convert to fraction form
    13,348,918.56/18,420,996.48 = 7,547,821.68/x
  3. Step 3: Cross multiply
    13,348,918.56x = 18,420,996.48 × 7,547,821.68
  4. Step 4: Simplify right side
    13,348,918.56x = 139,038,396,598,947.69
  5. Step 5: Solve for x
    x = 139,038,396,598,947.69/13,348,918.56
  6. Step 6: Final answer
    x = 10,415,704.91

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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.