Home / 126,186,963.40-189,131,145.90-53,403,603.40

Finding the Fourth Proportional to 126,186,963.40, 189,131,145.90 and 53,403,603.40

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Solution

The fourth proportional to 126,186,963.40, 189,131,145.90 and 53,403,603.40 is: 80,042,220.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,186,963.40 : 189,131,145.90 = 53,403,603.40 : x
  2. Step 2: Convert to fraction form
    126,186,963.40/189,131,145.90 = 53,403,603.40/x
  3. Step 3: Cross multiply
    126,186,963.40x = 189,131,145.90 × 53,403,603.40
  4. Step 4: Simplify right side
    126,186,963.40x = 10,100,284,706,231,136
  5. Step 5: Solve for x
    x = 10,100,284,706,231,136/126,186,963.40
  6. Step 6: Final answer
    x = 80,042,220.16

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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.