Home / 1,188,971,318.60-1,782,819,248.70-498,098,018.60

Finding the Fourth Proportional to 1,188,971,318.60, 1,782,819,248.70 and 498,098,018.60

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Solution

The fourth proportional to 1,188,971,318.60, 1,782,819,248.70 and 498,098,018.60 is: 746,879,862.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,971,318.60 : 1,782,819,248.70 = 498,098,018.60 : x
  2. Step 2: Convert to fraction form
    1,188,971,318.60/1,782,819,248.70 = 498,098,018.60/x
  3. Step 3: Cross multiply
    1,188,971,318.60x = 1,782,819,248.70 × 498,098,018.60
  4. Step 4: Simplify right side
    1,188,971,318.60x = 888,018,735,299,410,688
  5. Step 5: Solve for x
    x = 888,018,735,299,410,688/1,188,971,318.60
  6. Step 6: Final answer
    x = 746,879,862.79

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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.