Home / 1,210,190,170.83-1,670,045,459.59-674,364,419.80

Finding the Fourth Proportional to 1,210,190,170.83, 1,670,045,459.59 and 674,364,419.80

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Solution

The fourth proportional to 1,210,190,170.83, 1,670,045,459.59 and 674,364,419.80 is: 930,613,439.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,190,170.83 : 1,670,045,459.59 = 674,364,419.80 : x
  2. Step 2: Convert to fraction form
    1,210,190,170.83/1,670,045,459.59 = 674,364,419.80/x
  3. Step 3: Cross multiply
    1,210,190,170.83x = 1,670,045,459.59 × 674,364,419.80
  4. Step 4: Simplify right side
    1,210,190,170.83x = 1,126,219,237,396,034,560
  5. Step 5: Solve for x
    x = 1,126,219,237,396,034,560/1,210,190,170.83
  6. Step 6: Final answer
    x = 930,613,439.56

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Double scale
Find fourth proportional to 1,210,190,171.83, 1,670,045,460.97 and 674,364,420.80
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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.