Home / 129,411,745.80-193,984,908.30-75,531,323.40

Finding the Fourth Proportional to 129,411,745.80, 193,984,908.30 and 75,531,323.40

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Solution

The fourth proportional to 129,411,745.80, 193,984,908.30 and 75,531,323.40 is: 113,219,528.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,411,745.80 : 193,984,908.30 = 75,531,323.40 : x
  2. Step 2: Convert to fraction form
    129,411,745.80/193,984,908.30 = 75,531,323.40/x
  3. Step 3: Cross multiply
    129,411,745.80x = 193,984,908.30 × 75,531,323.40
  4. Step 4: Simplify right side
    129,411,745.80x = 14,651,936,843,526,646
  5. Step 5: Solve for x
    x = 14,651,936,843,526,646/129,411,745.80
  6. Step 6: Final answer
    x = 113,219,528.51

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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.