Home / 664,302,620.70-996,453,931.05-457,678,359.90

Finding the Fourth Proportional to 664,302,620.70, 996,453,931.05 and 457,678,359.90

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Solution

The fourth proportional to 664,302,620.70, 996,453,931.05 and 457,678,359.90 is: 686,517,539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,620.70 : 996,453,931.05 = 457,678,359.90 : x
  2. Step 2: Convert to fraction form
    664,302,620.70/996,453,931.05 = 457,678,359.90/x
  3. Step 3: Cross multiply
    664,302,620.70x = 996,453,931.05 × 457,678,359.90
  4. Step 4: Simplify right side
    664,302,620.70x = 456,055,400,878,871,616
  5. Step 5: Solve for x
    x = 456,055,400,878,871,616/664,302,620.70
  6. Step 6: Final answer
    x = 686,517,539.85

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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.