Home / 647,029,019.80-970,543,529.70-537,977,326.60

Finding the Fourth Proportional to 647,029,019.80, 970,543,529.70 and 537,977,326.60

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Solution

The fourth proportional to 647,029,019.80, 970,543,529.70 and 537,977,326.60 is: 806,965,989.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,029,019.80 : 970,543,529.70 = 537,977,326.60 : x
  2. Step 2: Convert to fraction form
    647,029,019.80/970,543,529.70 = 537,977,326.60/x
  3. Step 3: Cross multiply
    647,029,019.80x = 970,543,529.70 × 537,977,326.60
  4. Step 4: Simplify right side
    647,029,019.80x = 522,130,413,456,933,760
  5. Step 5: Solve for x
    x = 522,130,413,456,933,760/647,029,019.80
  6. Step 6: Final answer
    x = 806,965,989.90

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1.5x scale

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.