Home / 903,646,875.60-1,355,470,313.40-628,147,861.20

Finding the Fourth Proportional to 903,646,875.60, 1,355,470,313.40 and 628,147,861.20

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Solution

The fourth proportional to 903,646,875.60, 1,355,470,313.40 and 628,147,861.20 is: 942,221,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,646,875.60 : 1,355,470,313.40 = 628,147,861.20 : x
  2. Step 2: Convert to fraction form
    903,646,875.60/1,355,470,313.40 = 628,147,861.20/x
  3. Step 3: Cross multiply
    903,646,875.60x = 1,355,470,313.40 × 628,147,861.20
  4. Step 4: Simplify right side
    903,646,875.60x = 851,435,778,282,303,872
  5. Step 5: Solve for x
    x = 851,435,778,282,303,872/903,646,875.60
  6. Step 6: Final answer
    x = 942,221,791.80

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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.