Home / 354,328,194.30-531,492,291.45-281,148,768.60

Finding the Fourth Proportional to 354,328,194.30, 531,492,291.45 and 281,148,768.60

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Solution

The fourth proportional to 354,328,194.30, 531,492,291.45 and 281,148,768.60 is: 421,723,152.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,328,194.30 : 531,492,291.45 = 281,148,768.60 : x
  2. Step 2: Convert to fraction form
    354,328,194.30/531,492,291.45 = 281,148,768.60/x
  3. Step 3: Cross multiply
    354,328,194.30x = 531,492,291.45 × 281,148,768.60
  4. Step 4: Simplify right side
    354,328,194.30x = 149,428,403,261,559,808
  5. Step 5: Solve for x
    x = 149,428,403,261,559,808/354,328,194.30
  6. Step 6: Final answer
    x = 421,723,152.90

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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.