Home / 19,920,078.70-27,489,765.55-11,549,075.28

Finding the Fourth Proportional to 19,920,078.70, 27,489,765.55 and 11,549,075.28

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Solution

The fourth proportional to 19,920,078.70, 27,489,765.55 and 11,549,075.28 is: 15,937,756.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920,078.70 : 27,489,765.55 = 11,549,075.28 : x
  2. Step 2: Convert to fraction form
    19,920,078.70/27,489,765.55 = 11,549,075.28/x
  3. Step 3: Cross multiply
    19,920,078.70x = 27,489,765.55 × 11,549,075.28
  4. Step 4: Simplify right side
    19,920,078.70x = 317,481,371,623,719.81
  5. Step 5: Solve for x
    x = 317,481,371,623,719.81/19,920,078.70
  6. Step 6: Final answer
    x = 15,937,756.90

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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.