Home / 1,412,236,985.40-2,118,355,478.10-442,887,046.20

Finding the Fourth Proportional to 1,412,236,985.40, 2,118,355,478.10 and 442,887,046.20

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Solution

The fourth proportional to 1,412,236,985.40, 2,118,355,478.10 and 442,887,046.20 is: 664,330,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,236,985.40 : 2,118,355,478.10 = 442,887,046.20 : x
  2. Step 2: Convert to fraction form
    1,412,236,985.40/2,118,355,478.10 = 442,887,046.20/x
  3. Step 3: Cross multiply
    1,412,236,985.40x = 2,118,355,478.10 × 442,887,046.20
  4. Step 4: Simplify right side
    1,412,236,985.40x = 938,192,200,497,297,664
  5. Step 5: Solve for x
    x = 938,192,200,497,297,664/1,412,236,985.40
  6. Step 6: Final answer
    x = 664,330,569.30

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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.