Home / 331,620,739.20-497,281,809.60-149,774,313.60

Finding the Fourth Proportional to 331,620,739.20, 497,281,809.60 and 149,774,313.60

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Solution

The fourth proportional to 331,620,739.20, 497,281,809.60 and 149,774,313.60 is: 224,594,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,620,739.20 : 497,281,809.60 = 149,774,313.60 : x
  2. Step 2: Convert to fraction form
    331,620,739.20/497,281,809.60 = 149,774,313.60/x
  3. Step 3: Cross multiply
    331,620,739.20x = 497,281,809.60 × 149,774,313.60
  4. Step 4: Simplify right side
    331,620,739.20x = 74,480,041,698,605,888
  5. Step 5: Solve for x
    x = 74,480,041,698,605,888/331,620,739.20
  6. Step 6: Final answer
    x = 224,594,040.40

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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.