Home / 2,169,991,405.84-3,254,987,108.78-638,181,613.84

Finding the Fourth Proportional to 2,169,991,405.84, 3,254,987,108.78 and 638,181,613.84

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Solution

The fourth proportional to 2,169,991,405.84, 3,254,987,108.78 and 638,181,613.84 is: 957,272,420.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169,991,405.84 : 3,254,987,108.78 = 638,181,613.84 : x
  2. Step 2: Convert to fraction form
    2,169,991,405.84/3,254,987,108.78 = 638,181,613.84/x
  3. Step 3: Cross multiply
    2,169,991,405.84x = 3,254,987,108.78 × 638,181,613.84
  4. Step 4: Simplify right side
    2,169,991,405.84x = 2,077,272,926,109,616,384
  5. Step 5: Solve for x
    x = 2,077,272,926,109,616,384/2,169,991,405.84
  6. Step 6: Final answer
    x = 957,272,420.77

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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.