Home / 647,111,240.40-970,666,860.60-539,494,437.90

Finding the Fourth Proportional to 647,111,240.40, 970,666,860.60 and 539,494,437.90

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Solution

The fourth proportional to 647,111,240.40, 970,666,860.60 and 539,494,437.90 is: 809,241,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,111,240.40 : 970,666,860.60 = 539,494,437.90 : x
  2. Step 2: Convert to fraction form
    647,111,240.40/970,666,860.60 = 539,494,437.90/x
  3. Step 3: Cross multiply
    647,111,240.40x = 970,666,860.60 × 539,494,437.90
  4. Step 4: Simplify right side
    647,111,240.40x = 523,669,372,347,554,624
  5. Step 5: Solve for x
    x = 523,669,372,347,554,624/647,111,240.40
  6. Step 6: Final answer
    x = 809,241,656.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.