Home / 318,816,658.40-478,224,987.60-262,129,618.40

Finding the Fourth Proportional to 318,816,658.40, 478,224,987.60 and 262,129,618.40

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Solution

The fourth proportional to 318,816,658.40, 478,224,987.60 and 262,129,618.40 is: 393,194,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,816,658.40 : 478,224,987.60 = 262,129,618.40 : x
  2. Step 2: Convert to fraction form
    318,816,658.40/478,224,987.60 = 262,129,618.40/x
  3. Step 3: Cross multiply
    318,816,658.40x = 478,224,987.60 × 262,129,618.40
  4. Step 4: Simplify right side
    318,816,658.40x = 125,356,933,508,932,736
  5. Step 5: Solve for x
    x = 125,356,933,508,932,736/318,816,658.40
  6. Step 6: Final answer
    x = 393,194,427.60

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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.