Home / 10,121,128.80-13,967,506.56-5,537,450.40

Finding the Fourth Proportional to 10,121,128.80, 13,967,506.56 and 5,537,450.40

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Solution

The fourth proportional to 10,121,128.80, 13,967,506.56 and 5,537,450.40 is: 7,641,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121,128.80 : 13,967,506.56 = 5,537,450.40 : x
  2. Step 2: Convert to fraction form
    10,121,128.80/13,967,506.56 = 5,537,450.40/x
  3. Step 3: Cross multiply
    10,121,128.80x = 13,967,506.56 × 5,537,450.40
  4. Step 4: Simplify right side
    10,121,128.80x = 77,344,374,787,674.62
  5. Step 5: Solve for x
    x = 77,344,374,787,674.62/10,121,128.80
  6. Step 6: Final answer
    x = 7,641,872.40

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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.