Home / 460,387,716.03-690,571,603.20-128,385,867.29

Finding the Fourth Proportional to 460,387,716.03, 690,571,603.20 and 128,385,867.29

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Solution

The fourth proportional to 460,387,716.03, 690,571,603.20 and 128,385,867.29 is: 192,576,020.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,387,716.03 : 690,571,603.20 = 128,385,867.29 : x
  2. Step 2: Convert to fraction form
    460,387,716.03/690,571,603.20 = 128,385,867.29/x
  3. Step 3: Cross multiply
    460,387,716.03x = 690,571,603.20 × 128,385,867.29
  4. Step 4: Simplify right side
    460,387,716.03x = 88,659,634,202,865,808
  5. Step 5: Solve for x
    x = 88,659,634,202,865,808/460,387,716.03
  6. Step 6: Final answer
    x = 192,576,020.42

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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.