Home / 521,520,768,136.80-782,281,152,205.20-149,290,988,680.80

Finding the Fourth Proportional to 521,520,768,136.80, 782,281,152,205.20 and 149,290,988,680.80

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Solution

The fourth proportional to 521,520,768,136.80, 782,281,152,205.20 and 149,290,988,680.80 is: 223,936,483,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,768,136.80 : 782,281,152,205.20 = 149,290,988,680.80 : x
  2. Step 2: Convert to fraction form
    521,520,768,136.80/782,281,152,205.20 = 149,290,988,680.80/x
  3. Step 3: Cross multiply
    521,520,768,136.80x = 782,281,152,205.20 × 149,290,988,680.80
  4. Step 4: Simplify right side
    521,520,768,136.80x = 116,787,526,639,069,679,321,088
  5. Step 5: Solve for x
    x = 116,787,526,639,069,679,321,088/521,520,768,136.80
  6. Step 6: Final answer
    x = 223,936,483,021.20

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Double scale
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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.