Home / 1,311,613,681.37-1,810,022,485.94-716,897,821.23

Finding the Fourth Proportional to 1,311,613,681.37, 1,810,022,485.94 and 716,897,821.23

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Solution

The fourth proportional to 1,311,613,681.37, 1,810,022,485.94 and 716,897,821.23 is: 989,316,591.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,613,681.37 : 1,810,022,485.94 = 716,897,821.23 : x
  2. Step 2: Convert to fraction form
    1,311,613,681.37/1,810,022,485.94 = 716,897,821.23/x
  3. Step 3: Cross multiply
    1,311,613,681.37x = 1,810,022,485.94 × 716,897,821.23
  4. Step 4: Simplify right side
    1,311,613,681.37x = 1,297,601,176,544,109,824
  5. Step 5: Solve for x
    x = 1,297,601,176,544,109,824/1,311,613,681.37
  6. Step 6: Final answer
    x = 989,316,591.45

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Half scale
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Double scale
Find fourth proportional to 1,311,613,682.37, 1,810,022,487.32 and 716,897,822.23
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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.