Home / 478,946,719.40-718,420,079.10-206,848,927.40

Finding the Fourth Proportional to 478,946,719.40, 718,420,079.10 and 206,848,927.40

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Solution

The fourth proportional to 478,946,719.40, 718,420,079.10 and 206,848,927.40 is: 310,273,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,946,719.40 : 718,420,079.10 = 206,848,927.40 : x
  2. Step 2: Convert to fraction form
    478,946,719.40/718,420,079.10 = 206,848,927.40/x
  3. Step 3: Cross multiply
    478,946,719.40x = 718,420,079.10 × 206,848,927.40
  4. Step 4: Simplify right side
    478,946,719.40x = 148,604,422,784,458,176
  5. Step 5: Solve for x
    x = 148,604,422,784,458,176/478,946,719.40
  6. Step 6: Final answer
    x = 310,273,391.10

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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.