Home / 763,442,015.40-1,145,498,946.30-354,287,557.80

Finding the Fourth Proportional to 763,442,015.40, 1,145,498,946.30 and 354,287,557.80

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Solution

The fourth proportional to 763,442,015.40, 1,145,498,946.30 and 354,287,557.80 is: 531,587,227.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,442,015.40 : 1,145,498,946.30 = 354,287,557.80 : x
  2. Step 2: Convert to fraction form
    763,442,015.40/1,145,498,946.30 = 354,287,557.80/x
  3. Step 3: Cross multiply
    763,442,015.40x = 1,145,498,946.30 × 354,287,557.80
  4. Step 4: Simplify right side
    763,442,015.40x = 405,836,024,147,100,352
  5. Step 5: Solve for x
    x = 405,836,024,147,100,352/763,442,015.40
  6. Step 6: Final answer
    x = 531,587,227.27

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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.