Home / 354,294,665.40-531,441,998.10-262,461,660.60

Finding the Fourth Proportional to 354,294,665.40, 531,441,998.10 and 262,461,660.60

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Solution

The fourth proportional to 354,294,665.40, 531,441,998.10 and 262,461,660.60 is: 393,692,490.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,665.40 : 531,441,998.10 = 262,461,660.60 : x
  2. Step 2: Convert to fraction form
    354,294,665.40/531,441,998.10 = 262,461,660.60/x
  3. Step 3: Cross multiply
    354,294,665.40x = 531,441,998.10 × 262,461,660.60
  4. Step 4: Simplify right side
    354,294,665.40x = 139,483,149,333,908,048
  5. Step 5: Solve for x
    x = 139,483,149,333,908,048/354,294,665.40
  6. Step 6: Final answer
    x = 393,692,490.90

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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.