Home / 129,054,563.20-193,581,844.80-99,829,244.80

Finding the Fourth Proportional to 129,054,563.20, 193,581,844.80 and 99,829,244.80

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Solution

The fourth proportional to 129,054,563.20, 193,581,844.80 and 99,829,244.80 is: 149,743,867.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,054,563.20 : 193,581,844.80 = 99,829,244.80 : x
  2. Step 2: Convert to fraction form
    129,054,563.20/193,581,844.80 = 99,829,244.80/x
  3. Step 3: Cross multiply
    129,054,563.20x = 193,581,844.80 × 99,829,244.80
  4. Step 4: Simplify right side
    129,054,563.20x = 19,325,129,373,374,808
  5. Step 5: Solve for x
    x = 19,325,129,373,374,808/129,054,563.20
  6. Step 6: Final answer
    x = 149,743,867.20

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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.