Home / 9,531,393.21-13,153,455.81-5,180,478.21

Finding the Fourth Proportional to 9,531,393.21, 13,153,455.81 and 5,180,478.21

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Solution

The fourth proportional to 9,531,393.21, 13,153,455.81 and 5,180,478.21 is: 7,149,132.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,531,393.21 : 13,153,455.81 = 5,180,478.21 : x
  2. Step 2: Convert to fraction form
    9,531,393.21/13,153,455.81 = 5,180,478.21/x
  3. Step 3: Cross multiply
    9,531,393.21x = 13,153,455.81 × 5,180,478.21
  4. Step 4: Simplify right side
    9,531,393.21x = 68,141,191,209,902.90
  5. Step 5: Solve for x
    x = 68,141,191,209,902.90/9,531,393.21
  6. Step 6: Final answer
    x = 7,149,132.32

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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.