Home / 1,260,285,539.40-1,890,359,972.64-386,887,056.48

Finding the Fourth Proportional to 1,260,285,539.40, 1,890,359,972.64 and 386,887,056.48

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Solution

The fourth proportional to 1,260,285,539.40, 1,890,359,972.64 and 386,887,056.48 is: 580,309,606.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,285,539.40 : 1,890,359,972.64 = 386,887,056.48 : x
  2. Step 2: Convert to fraction form
    1,260,285,539.40/1,890,359,972.64 = 386,887,056.48/x
  3. Step 3: Cross multiply
    1,260,285,539.40x = 1,890,359,972.64 × 386,887,056.48
  4. Step 4: Simplify right side
    1,260,285,539.40x = 731,355,805,502,302,976
  5. Step 5: Solve for x
    x = 731,355,805,502,302,976/1,260,285,539.40
  6. Step 6: Final answer
    x = 580,309,606.54

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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.