Home / 12,455,306.82-17,189,506.53-7,809,827.22

Finding the Fourth Proportional to 12,455,306.82, 17,189,506.53 and 7,809,827.22

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Solution

The fourth proportional to 12,455,306.82, 17,189,506.53 and 7,809,827.22 is: 10,778,303.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,306.82 : 17,189,506.53 = 7,809,827.22 : x
  2. Step 2: Convert to fraction form
    12,455,306.82/17,189,506.53 = 7,809,827.22/x
  3. Step 3: Cross multiply
    12,455,306.82x = 17,189,506.53 × 7,809,827.22
  4. Step 4: Simplify right side
    12,455,306.82x = 134,247,075,996,361.75
  5. Step 5: Solve for x
    x = 134,247,075,996,361.75/12,455,306.82
  6. Step 6: Final answer
    x = 10,778,303.41

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1.5x scale

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.