Home / 510,984,136.80-766,476,205.20-505,609,365.60

Finding the Fourth Proportional to 510,984,136.80, 766,476,205.20 and 505,609,365.60

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Solution

The fourth proportional to 510,984,136.80, 766,476,205.20 and 505,609,365.60 is: 758,414,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,984,136.80 : 766,476,205.20 = 505,609,365.60 : x
  2. Step 2: Convert to fraction form
    510,984,136.80/766,476,205.20 = 505,609,365.60/x
  3. Step 3: Cross multiply
    510,984,136.80x = 766,476,205.20 × 505,609,365.60
  4. Step 4: Simplify right side
    510,984,136.80x = 387,537,547,858,667,456
  5. Step 5: Solve for x
    x = 387,537,547,858,667,456/510,984,136.80
  6. Step 6: Final answer
    x = 758,414,048.40

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Half scale
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Double scale
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Similar ratio
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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.