Home / 445,824,005.90-668,736,008.85-398,206,892.30

Finding the Fourth Proportional to 445,824,005.90, 668,736,008.85 and 398,206,892.30

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Solution

The fourth proportional to 445,824,005.90, 668,736,008.85 and 398,206,892.30 is: 597,310,338.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,824,005.90 : 668,736,008.85 = 398,206,892.30 : x
  2. Step 2: Convert to fraction form
    445,824,005.90/668,736,008.85 = 398,206,892.30/x
  3. Step 3: Cross multiply
    445,824,005.90x = 668,736,008.85 × 398,206,892.30
  4. Step 4: Simplify right side
    445,824,005.90x = 266,295,287,853,263,808
  5. Step 5: Solve for x
    x = 266,295,287,853,263,808/445,824,005.90
  6. Step 6: Final answer
    x = 597,310,338.45

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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.