Home / 129,034,530.80-193,551,796.20-86,036,361.20

Finding the Fourth Proportional to 129,034,530.80, 193,551,796.20 and 86,036,361.20

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Solution

The fourth proportional to 129,034,530.80, 193,551,796.20 and 86,036,361.20 is: 129,054,541.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,034,530.80 : 193,551,796.20 = 86,036,361.20 : x
  2. Step 2: Convert to fraction form
    129,034,530.80/193,551,796.20 = 86,036,361.20/x
  3. Step 3: Cross multiply
    129,034,530.80x = 193,551,796.20 × 86,036,361.20
  4. Step 4: Simplify right side
    129,034,530.80x = 16,652,492,248,771,986
  5. Step 5: Solve for x
    x = 16,652,492,248,771,986/129,034,530.80
  6. Step 6: Final answer
    x = 129,054,541.80

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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.