Home / 1,311,613,685.36-1,810,022,491.44-716,897,825.22

Finding the Fourth Proportional to 1,311,613,685.36, 1,810,022,491.44 and 716,897,825.22

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Solution

The fourth proportional to 1,311,613,685.36, 1,810,022,491.44 and 716,897,825.22 is: 989,316,596.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,613,685.36 : 1,810,022,491.44 = 716,897,825.22 : x
  2. Step 2: Convert to fraction form
    1,311,613,685.36/1,810,022,491.44 = 716,897,825.22/x
  3. Step 3: Cross multiply
    1,311,613,685.36x = 1,810,022,491.44 × 716,897,825.22
  4. Step 4: Simplify right side
    1,311,613,685.36x = 1,297,601,187,712,622,080
  5. Step 5: Solve for x
    x = 1,297,601,187,712,622,080/1,311,613,685.36
  6. Step 6: Final answer
    x = 989,316,596.95

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Double scale
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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.