Home / 499,472,355.40-749,208,533.10-212,220,694.60

Finding the Fourth Proportional to 499,472,355.40, 749,208,533.10 and 212,220,694.60

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Solution

The fourth proportional to 499,472,355.40, 749,208,533.10 and 212,220,694.60 is: 318,331,041.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,472,355.40 : 749,208,533.10 = 212,220,694.60 : x
  2. Step 2: Convert to fraction form
    499,472,355.40/749,208,533.10 = 212,220,694.60/x
  3. Step 3: Cross multiply
    499,472,355.40x = 749,208,533.10 × 212,220,694.60
  4. Step 4: Simplify right side
    499,472,355.40x = 158,997,555,294,729,088
  5. Step 5: Solve for x
    x = 158,997,555,294,729,088/499,472,355.40
  6. Step 6: Final answer
    x = 318,331,041.90

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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.