Home / 811,971,562.77-1,120,531,506.21-440,698,044.69

Finding the Fourth Proportional to 811,971,562.77, 1,120,531,506.21 and 440,698,044.69

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Solution

The fourth proportional to 811,971,562.77, 1,120,531,506.21 and 440,698,044.69 is: 608,169,136.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,971,562.77 : 1,120,531,506.21 = 440,698,044.69 : x
  2. Step 2: Convert to fraction form
    811,971,562.77/1,120,531,506.21 = 440,698,044.69/x
  3. Step 3: Cross multiply
    811,971,562.77x = 1,120,531,506.21 × 440,698,044.69
  4. Step 4: Simplify right side
    811,971,562.77x = 493,816,043,800,287,616
  5. Step 5: Solve for x
    x = 493,816,043,800,287,616/811,971,562.77
  6. Step 6: Final answer
    x = 608,169,136.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.