Home / 1,210,190,170.59-1,670,045,459.25-674,364,419.56

Finding the Fourth Proportional to 1,210,190,170.59, 1,670,045,459.25 and 674,364,419.56

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Solution

The fourth proportional to 1,210,190,170.59, 1,670,045,459.25 and 674,364,419.56 is: 930,613,439.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,190,170.59 : 1,670,045,459.25 = 674,364,419.56 : x
  2. Step 2: Convert to fraction form
    1,210,190,170.59/1,670,045,459.25 = 674,364,419.56/x
  3. Step 3: Cross multiply
    1,210,190,170.59x = 1,670,045,459.25 × 674,364,419.56
  4. Step 4: Simplify right side
    1,210,190,170.59x = 1,126,219,236,757,589,632
  5. Step 5: Solve for x
    x = 1,126,219,236,757,589,632/1,210,190,170.59
  6. Step 6: Final answer
    x = 930,613,439.22

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Double scale
Find fourth proportional to 1,210,190,171.59, 1,670,045,460.63 and 674,364,420.56
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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.