Home / 509,913,999.60-764,870,999.40-146,361,116.40

Finding the Fourth Proportional to 509,913,999.60, 764,870,999.40 and 146,361,116.40

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Solution

The fourth proportional to 509,913,999.60, 764,870,999.40 and 146,361,116.40 is: 219,541,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,913,999.60 : 764,870,999.40 = 146,361,116.40 : x
  2. Step 2: Convert to fraction form
    509,913,999.60/764,870,999.40 = 146,361,116.40/x
  3. Step 3: Cross multiply
    509,913,999.60x = 764,870,999.40 × 146,361,116.40
  4. Step 4: Simplify right side
    509,913,999.60x = 111,947,373,374,167,728
  5. Step 5: Solve for x
    x = 111,947,373,374,167,728/509,913,999.60
  6. Step 6: Final answer
    x = 219,541,674.60

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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.