Home / 210,023,464.80-315,033,123.60-66,416,296.80

Finding the Fourth Proportional to 210,023,464.80, 315,033,123.60 and 66,416,296.80

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Solution

The fourth proportional to 210,023,464.80, 315,033,123.60 and 66,416,296.80 is: 99,623,789.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,023,464.80 : 315,033,123.60 = 66,416,296.80 : x
  2. Step 2: Convert to fraction form
    210,023,464.80/315,033,123.60 = 66,416,296.80/x
  3. Step 3: Cross multiply
    210,023,464.80x = 315,033,123.60 × 66,416,296.80
  4. Step 4: Simplify right side
    210,023,464.80x = 20,923,333,438,848,684
  5. Step 5: Solve for x
    x = 20,923,333,438,848,684/210,023,464.80
  6. Step 6: Final answer
    x = 99,623,789.46

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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.