Home / 809,289,278.47-1,116,846,285.38-495,962,983.81

Finding the Fourth Proportional to 809,289,278.47, 1,116,846,285.38 and 495,962,983.81

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Solution

The fourth proportional to 809,289,278.47, 1,116,846,285.38 and 495,962,983.81 is: 684,445,513.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,289,278.47 : 1,116,846,285.38 = 495,962,983.81 : x
  2. Step 2: Convert to fraction form
    809,289,278.47/1,116,846,285.38 = 495,962,983.81/x
  3. Step 3: Cross multiply
    809,289,278.47x = 1,116,846,285.38 × 495,962,983.81
  4. Step 4: Simplify right side
    809,289,278.47x = 553,914,416,154,179,648
  5. Step 5: Solve for x
    x = 553,914,416,154,179,648/809,289,278.47
  6. Step 6: Final answer
    x = 684,445,513.97

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1.5x scale

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.