Home / 2,781,749,325.40-4,173,127,872.90-1,398,081,664.60

Finding the Fourth Proportional to 2,781,749,325.40, 4,173,127,872.90 and 1,398,081,664.60

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Solution

The fourth proportional to 2,781,749,325.40, 4,173,127,872.90 and 1,398,081,664.60 is: 2,097,375,744.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,749,325.40 : 4,173,127,872.90 = 1,398,081,664.60 : x
  2. Step 2: Convert to fraction form
    2,781,749,325.40/4,173,127,872.90 = 1,398,081,664.60/x
  3. Step 3: Cross multiply
    2,781,749,325.40x = 4,173,127,872.90 × 1,398,081,664.60
  4. Step 4: Simplify right side
    2,781,749,325.40x = 5,834,373,563,132,689,408
  5. Step 5: Solve for x
    x = 5,834,373,563,132,689,408/2,781,749,325.40
  6. Step 6: Final answer
    x = 2,097,375,744.77

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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.