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Finding the Fourth Proportional to 446,091,862.40, 668,877,978 and 173,143,764.80

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Solution

The fourth proportional to 446,091,862.40, 668,877,978 and 173,143,764.80 is: 259,614,803.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,091,862.40 : 668,877,978 = 173,143,764.80 : x
  2. Step 2: Convert to fraction form
    446,091,862.40/668,877,978 = 173,143,764.80/x
  3. Step 3: Cross multiply
    446,091,862.40x = 668,877,978 × 173,143,764.80
  4. Step 4: Simplify right side
    446,091,862.40x = 115,812,051,302,731,584
  5. Step 5: Solve for x
    x = 115,812,051,302,731,584/446,091,862.40
  6. Step 6: Final answer
    x = 259,614,803.73

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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.