Home / 521,459,296.80-782,245,612.80-193,896,385.44

Finding the Fourth Proportional to 521,459,296.80, 782,245,612.80 and 193,896,385.44

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Solution

The fourth proportional to 521,459,296.80, 782,245,612.80 and 193,896,385.44 is: 290,865,649.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,459,296.80 : 782,245,612.80 = 193,896,385.44 : x
  2. Step 2: Convert to fraction form
    521,459,296.80/782,245,612.80 = 193,896,385.44/x
  3. Step 3: Cross multiply
    521,459,296.80x = 782,245,612.80 × 193,896,385.44
  4. Step 4: Simplify right side
    521,459,296.80x = 151,674,596,848,217,792
  5. Step 5: Solve for x
    x = 151,674,596,848,217,792/521,459,296.80
  6. Step 6: Final answer
    x = 290,865,649.11

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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.