Home / 873,690,673.69-1,310,540,909.76-291,423,320.75

Finding the Fourth Proportional to 873,690,673.69, 1,310,540,909.76 and 291,423,320.75

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Solution

The fourth proportional to 873,690,673.69, 1,310,540,909.76 and 291,423,320.75 is: 437,136,615.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,690,673.69 : 1,310,540,909.76 = 291,423,320.75 : x
  2. Step 2: Convert to fraction form
    873,690,673.69/1,310,540,909.76 = 291,423,320.75/x
  3. Step 3: Cross multiply
    873,690,673.69x = 1,310,540,909.76 × 291,423,320.75
  4. Step 4: Simplify right side
    873,690,673.69x = 381,922,183,904,261,632
  5. Step 5: Solve for x
    x = 381,922,183,904,261,632/873,690,673.69
  6. Step 6: Final answer
    x = 437,136,615.29

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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.