Home / 72,171,447.40-108,257,171.10-71,533,718.20

Finding the Fourth Proportional to 72,171,447.40, 108,257,171.10 and 71,533,718.20

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Solution

The fourth proportional to 72,171,447.40, 108,257,171.10 and 71,533,718.20 is: 107,300,577.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171,447.40 : 108,257,171.10 = 71,533,718.20 : x
  2. Step 2: Convert to fraction form
    72,171,447.40/108,257,171.10 = 71,533,718.20/x
  3. Step 3: Cross multiply
    72,171,447.40x = 108,257,171.10 × 71,533,718.20
  4. Step 4: Simplify right side
    72,171,447.40x = 7,744,037,970,596,584
  5. Step 5: Solve for x
    x = 7,744,037,970,596,584/72,171,447.40
  6. Step 6: Final answer
    x = 107,300,577.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.