Home / 1,012,989,369.92-1,397,969,020.72-560,867,334.76

Finding the Fourth Proportional to 1,012,989,369.92, 1,397,969,020.72 and 560,867,334.76

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Solution

The fourth proportional to 1,012,989,369.92, 1,397,969,020.72 and 560,867,334.76 is: 774,021,112.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,989,369.92 : 1,397,969,020.72 = 560,867,334.76 : x
  2. Step 2: Convert to fraction form
    1,012,989,369.92/1,397,969,020.72 = 560,867,334.76/x
  3. Step 3: Cross multiply
    1,012,989,369.92x = 1,397,969,020.72 × 560,867,334.76
  4. Step 4: Simplify right side
    1,012,989,369.92x = 784,075,158,728,273,664
  5. Step 5: Solve for x
    x = 784,075,158,728,273,664/1,012,989,369.92
  6. Step 6: Final answer
    x = 774,021,112.18

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Half scale
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Double scale
Find fourth proportional to 1,012,989,370.92, 1,397,969,022.10 and 560,867,335.76
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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.