Home / 912,080,529.28-1,258,687,254.72-494,406,686.08

Finding the Fourth Proportional to 912,080,529.28, 1,258,687,254.72 and 494,406,686.08

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Solution

The fourth proportional to 912,080,529.28, 1,258,687,254.72 and 494,406,686.08 is: 682,289,967.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,080,529.28 : 1,258,687,254.72 = 494,406,686.08 : x
  2. Step 2: Convert to fraction form
    912,080,529.28/1,258,687,254.72 = 494,406,686.08/x
  3. Step 3: Cross multiply
    912,080,529.28x = 1,258,687,254.72 × 494,406,686.08
  4. Step 4: Simplify right side
    912,080,529.28x = 622,303,394,417,248,000
  5. Step 5: Solve for x
    x = 622,303,394,417,248,000/912,080,529.28
  6. Step 6: Final answer
    x = 682,289,967.21

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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.