Home / 521,520,769,905.40-782,281,154,858.10-186,146,636,375.80

Finding the Fourth Proportional to 521,520,769,905.40, 782,281,154,858.10 and 186,146,636,375.80

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Solution

The fourth proportional to 521,520,769,905.40, 782,281,154,858.10 and 186,146,636,375.80 is: 279,219,954,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,769,905.40 : 782,281,154,858.10 = 186,146,636,375.80 : x
  2. Step 2: Convert to fraction form
    521,520,769,905.40/782,281,154,858.10 = 186,146,636,375.80/x
  3. Step 3: Cross multiply
    521,520,769,905.40x = 782,281,154,858.10 × 186,146,636,375.80
  4. Step 4: Simplify right side
    521,520,769,905.40x = 145,619,005,677,011,612,991,488
  5. Step 5: Solve for x
    x = 145,619,005,677,011,612,991,488/521,520,769,905.40
  6. Step 6: Final answer
    x = 279,219,954,563.70

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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.