Home / 381,845,461.60-572,768,192.40-139,476,872.80

Finding the Fourth Proportional to 381,845,461.60, 572,768,192.40 and 139,476,872.80

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Solution

The fourth proportional to 381,845,461.60, 572,768,192.40 and 139,476,872.80 is: 209,215,309.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,845,461.60 : 572,768,192.40 = 139,476,872.80 : x
  2. Step 2: Convert to fraction form
    381,845,461.60/572,768,192.40 = 139,476,872.80/x
  3. Step 3: Cross multiply
    381,845,461.60x = 572,768,192.40 × 139,476,872.80
  4. Step 4: Simplify right side
    381,845,461.60x = 79,887,916,315,260,736
  5. Step 5: Solve for x
    x = 79,887,916,315,260,736/381,845,461.60
  6. Step 6: Final answer
    x = 209,215,309.20

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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.