Home / 912,080,530.28-1,258,687,256.10-494,406,687.08

Finding the Fourth Proportional to 912,080,530.28, 1,258,687,256.10 and 494,406,687.08

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Solution

The fourth proportional to 912,080,530.28, 1,258,687,256.10 and 494,406,687.08 is: 682,289,968.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,080,530.28 : 1,258,687,256.10 = 494,406,687.08 : x
  2. Step 2: Convert to fraction form
    912,080,530.28/1,258,687,256.10 = 494,406,687.08/x
  3. Step 3: Cross multiply
    912,080,530.28x = 1,258,687,256.10 × 494,406,687.08
  4. Step 4: Simplify right side
    912,080,530.28x = 622,303,396,358,216,448
  5. Step 5: Solve for x
    x = 622,303,396,358,216,448/912,080,530.28
  6. Step 6: Final answer
    x = 682,289,968.59

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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.