Home / 1,272,011,218.44-1,908,017,524.77-581,434,196.80

Finding the Fourth Proportional to 1,272,011,218.44, 1,908,017,524.77 and 581,434,196.80

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Solution

The fourth proportional to 1,272,011,218.44, 1,908,017,524.77 and 581,434,196.80 is: 872,151,613.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,011,218.44 : 1,908,017,524.77 = 581,434,196.80 : x
  2. Step 2: Convert to fraction form
    1,272,011,218.44/1,908,017,524.77 = 581,434,196.80/x
  3. Step 3: Cross multiply
    1,272,011,218.44x = 1,908,017,524.77 × 581,434,196.80
  4. Step 4: Simplify right side
    1,272,011,218.44x = 1,109,386,636,982,521,728
  5. Step 5: Solve for x
    x = 1,109,386,636,982,521,728/1,272,011,218.44
  6. Step 6: Final answer
    x = 872,151,613.84

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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.