Home / 521,520,769,919.40-782,281,154,879.10-186,146,636,389.80

Finding the Fourth Proportional to 521,520,769,919.40, 782,281,154,879.10 and 186,146,636,389.80

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Solution

The fourth proportional to 521,520,769,919.40, 782,281,154,879.10 and 186,146,636,389.80 is: 279,219,954,584.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,769,919.40 : 782,281,154,879.10 = 186,146,636,389.80 : x
  2. Step 2: Convert to fraction form
    521,520,769,919.40/782,281,154,879.10 = 186,146,636,389.80/x
  3. Step 3: Cross multiply
    521,520,769,919.40x = 782,281,154,879.10 × 186,146,636,389.80
  4. Step 4: Simplify right side
    521,520,769,919.40x = 145,619,005,691,872,636,043,264
  5. Step 5: Solve for x
    x = 145,619,005,691,872,636,043,264/521,520,769,919.40
  6. Step 6: Final answer
    x = 279,219,954,584.70

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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.