Home / 81,655,271.60-122,482,907.40-74,096,999.60

Finding the Fourth Proportional to 81,655,271.60, 122,482,907.40 and 74,096,999.60

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Solution

The fourth proportional to 81,655,271.60, 122,482,907.40 and 74,096,999.60 is: 111,145,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,655,271.60 : 122,482,907.40 = 74,096,999.60 : x
  2. Step 2: Convert to fraction form
    81,655,271.60/122,482,907.40 = 74,096,999.60/x
  3. Step 3: Cross multiply
    81,655,271.60x = 122,482,907.40 × 74,096,999.60
  4. Step 4: Simplify right side
    81,655,271.60x = 9,075,615,940,624,636
  5. Step 5: Solve for x
    x = 9,075,615,940,624,636/81,655,271.60
  6. Step 6: Final answer
    x = 111,145,499.40

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Similar ratio
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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.