Home / 712,022,254.88-982,344,809.30-447,724,360.31

Finding the Fourth Proportional to 712,022,254.88, 982,344,809.30 and 447,724,360.31

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Solution

The fourth proportional to 712,022,254.88, 982,344,809.30 and 447,724,360.31 is: 617,704,992.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,022,254.88 : 982,344,809.30 = 447,724,360.31 : x
  2. Step 2: Convert to fraction form
    712,022,254.88/982,344,809.30 = 447,724,360.31/x
  3. Step 3: Cross multiply
    712,022,254.88x = 982,344,809.30 × 447,724,360.31
  4. Step 4: Simplify right side
    712,022,254.88x = 439,819,701,340,541,056
  5. Step 5: Solve for x
    x = 439,819,701,340,541,056/712,022,254.88
  6. Step 6: Final answer
    x = 617,704,992.13

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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.