Home / 321,819,333.10-482,728,999.65-289,570,705.90

Finding the Fourth Proportional to 321,819,333.10, 482,728,999.65 and 289,570,705.90

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Solution

The fourth proportional to 321,819,333.10, 482,728,999.65 and 289,570,705.90 is: 434,356,058.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,819,333.10 : 482,728,999.65 = 289,570,705.90 : x
  2. Step 2: Convert to fraction form
    321,819,333.10/482,728,999.65 = 289,570,705.90/x
  3. Step 3: Cross multiply
    321,819,333.10x = 482,728,999.65 × 289,570,705.90
  4. Step 4: Simplify right side
    321,819,333.10x = 139,784,177,187,051,328
  5. Step 5: Solve for x
    x = 139,784,177,187,051,328/321,819,333.10
  6. Step 6: Final answer
    x = 434,356,058.85

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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.