Home / 912,716,318.40-1,259,577,031.20-516,231,549.56

Finding the Fourth Proportional to 912,716,318.40, 1,259,577,031.20 and 516,231,549.56

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Solution

The fourth proportional to 912,716,318.40, 1,259,577,031.20 and 516,231,549.56 is: 712,415,664.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,716,318.40 : 1,259,577,031.20 = 516,231,549.56 : x
  2. Step 2: Convert to fraction form
    912,716,318.40/1,259,577,031.20 = 516,231,549.56/x
  3. Step 3: Cross multiply
    912,716,318.40x = 1,259,577,031.20 × 516,231,549.56
  4. Step 4: Simplify right side
    912,716,318.40x = 650,233,402,606,560,512
  5. Step 5: Solve for x
    x = 650,233,402,606,560,512/912,716,318.40
  6. Step 6: Final answer
    x = 712,415,664.65

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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.