Home / 199,597,987.40-299,396,981.10-130,723,233.80

Finding the Fourth Proportional to 199,597,987.40, 299,396,981.10 and 130,723,233.80

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Solution

The fourth proportional to 199,597,987.40, 299,396,981.10 and 130,723,233.80 is: 196,084,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,597,987.40 : 299,396,981.10 = 130,723,233.80 : x
  2. Step 2: Convert to fraction form
    199,597,987.40/299,396,981.10 = 130,723,233.80/x
  3. Step 3: Cross multiply
    199,597,987.40x = 299,396,981.10 × 130,723,233.80
  4. Step 4: Simplify right side
    199,597,987.40x = 39,138,141,559,349,480
  5. Step 5: Solve for x
    x = 39,138,141,559,349,480/199,597,987.40
  6. Step 6: Final answer
    x = 196,084,850.70

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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.