Home / 956,672,408.64-1,320,207,912.95-516,639,260.64

Finding the Fourth Proportional to 956,672,408.64, 1,320,207,912.95 and 516,639,260.64

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Solution

The fourth proportional to 956,672,408.64, 1,320,207,912.95 and 516,639,260.64 is: 712,962,173.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,672,408.64 : 1,320,207,912.95 = 516,639,260.64 : x
  2. Step 2: Convert to fraction form
    956,672,408.64/1,320,207,912.95 = 516,639,260.64/x
  3. Step 3: Cross multiply
    956,672,408.64x = 1,320,207,912.95 × 516,639,260.64
  4. Step 4: Simplify right side
    956,672,408.64x = 682,071,240,037,565,440
  5. Step 5: Solve for x
    x = 682,071,240,037,565,440/956,672,408.64
  6. Step 6: Final answer
    x = 712,962,173.76

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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.