Home / 816,491,511.60-1,224,737,267.40-449,159,492.40

Finding the Fourth Proportional to 816,491,511.60, 1,224,737,267.40 and 449,159,492.40

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Solution

The fourth proportional to 816,491,511.60, 1,224,737,267.40 and 449,159,492.40 is: 673,739,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,491,511.60 : 1,224,737,267.40 = 449,159,492.40 : x
  2. Step 2: Convert to fraction form
    816,491,511.60/1,224,737,267.40 = 449,159,492.40/x
  3. Step 3: Cross multiply
    816,491,511.60x = 1,224,737,267.40 × 449,159,492.40
  4. Step 4: Simplify right side
    816,491,511.60x = 550,102,369,348,747,072
  5. Step 5: Solve for x
    x = 550,102,369,348,747,072/816,491,511.60
  6. Step 6: Final answer
    x = 673,739,238.60

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1.5x scale

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.