Home / 13,472,073.12-18,591,728.40-7,360,880.80

Finding the Fourth Proportional to 13,472,073.12, 18,591,728.40 and 7,360,880.80

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Solution

The fourth proportional to 13,472,073.12, 18,591,728.40 and 7,360,880.80 is: 10,158,161.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472,073.12 : 18,591,728.40 = 7,360,880.80 : x
  2. Step 2: Convert to fraction form
    13,472,073.12/18,591,728.40 = 7,360,880.80/x
  3. Step 3: Cross multiply
    13,472,073.12x = 18,591,728.40 × 7,360,880.80
  4. Step 4: Simplify right side
    13,472,073.12x = 136,851,496,618,374.70
  5. Step 5: Solve for x
    x = 136,851,496,618,374.70/13,472,073.12
  6. Step 6: Final answer
    x = 10,158,161.66

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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.