Home / 524,881,251.40-787,321,877.10-320,807,907.40

Finding the Fourth Proportional to 524,881,251.40, 787,321,877.10 and 320,807,907.40

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Solution

The fourth proportional to 524,881,251.40, 787,321,877.10 and 320,807,907.40 is: 481,211,861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,881,251.40 : 787,321,877.10 = 320,807,907.40 : x
  2. Step 2: Convert to fraction form
    524,881,251.40/787,321,877.10 = 320,807,907.40/x
  3. Step 3: Cross multiply
    524,881,251.40x = 787,321,877.10 × 320,807,907.40
  4. Step 4: Simplify right side
    524,881,251.40x = 252,579,083,842,690,976
  5. Step 5: Solve for x
    x = 252,579,083,842,690,976/524,881,251.40
  6. Step 6: Final answer
    x = 481,211,861.10

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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.