Home / 199,588,423.20-299,382,634.80-122,662,010.40

Finding the Fourth Proportional to 199,588,423.20, 299,382,634.80 and 122,662,010.40

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Solution

The fourth proportional to 199,588,423.20, 299,382,634.80 and 122,662,010.40 is: 183,993,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,588,423.20 : 299,382,634.80 = 122,662,010.40 : x
  2. Step 2: Convert to fraction form
    199,588,423.20/299,382,634.80 = 122,662,010.40/x
  3. Step 3: Cross multiply
    199,588,423.20x = 299,382,634.80 × 122,662,010.40
  4. Step 4: Simplify right side
    199,588,423.20x = 36,722,875,863,417,008
  5. Step 5: Solve for x
    x = 36,722,875,863,417,008/199,588,423.20
  6. Step 6: Final answer
    x = 183,993,015.60

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1.5x scale

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.