Home / 408,475,313.66-563,618,838.46-243,478,235.90

Finding the Fourth Proportional to 408,475,313.66, 563,618,838.46 and 243,478,235.90

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Solution

The fourth proportional to 408,475,313.66, 563,618,838.46 and 243,478,235.90 is: 335,954,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,475,313.66 : 563,618,838.46 = 243,478,235.90 : x
  2. Step 2: Convert to fraction form
    408,475,313.66/563,618,838.46 = 243,478,235.90/x
  3. Step 3: Cross multiply
    408,475,313.66x = 563,618,838.46 × 243,478,235.90
  4. Step 4: Simplify right side
    408,475,313.66x = 137,228,920,508,247,888
  5. Step 5: Solve for x
    x = 137,228,920,508,247,888/408,475,313.66
  6. Step 6: Final answer
    x = 335,954,012.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.