Home / 499,472,355.90-749,208,533.85-212,220,695.10

Finding the Fourth Proportional to 499,472,355.90, 749,208,533.85 and 212,220,695.10

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Solution

The fourth proportional to 499,472,355.90, 749,208,533.85 and 212,220,695.10 is: 318,331,042.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,472,355.90 : 749,208,533.85 = 212,220,695.10 : x
  2. Step 2: Convert to fraction form
    499,472,355.90/749,208,533.85 = 212,220,695.10/x
  3. Step 3: Cross multiply
    499,472,355.90x = 749,208,533.85 × 212,220,695.10
  4. Step 4: Simplify right side
    499,472,355.90x = 158,997,555,828,498,880
  5. Step 5: Solve for x
    x = 158,997,555,828,498,880/499,472,355.90
  6. Step 6: Final answer
    x = 318,331,042.65

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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.