Home / 354,318,509.60-531,477,764.40-320,306,285.60

Finding the Fourth Proportional to 354,318,509.60, 531,477,764.40 and 320,306,285.60

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Solution

The fourth proportional to 354,318,509.60, 531,477,764.40 and 320,306,285.60 is: 480,459,428.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,318,509.60 : 531,477,764.40 = 320,306,285.60 : x
  2. Step 2: Convert to fraction form
    354,318,509.60/531,477,764.40 = 320,306,285.60/x
  3. Step 3: Cross multiply
    354,318,509.60x = 531,477,764.40 × 320,306,285.60
  4. Step 4: Simplify right side
    354,318,509.60x = 170,235,668,593,955,904
  5. Step 5: Solve for x
    x = 170,235,668,593,955,904/354,318,509.60
  6. Step 6: Final answer
    x = 480,459,428.40

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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.