Home / 663,891,118.07-916,250,080.77-377,852,190.48

Finding the Fourth Proportional to 663,891,118.07, 916,250,080.77 and 377,852,190.48

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Solution

The fourth proportional to 663,891,118.07, 916,250,080.77 and 377,852,190.48 is: 521,481,746.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,891,118.07 : 916,250,080.77 = 377,852,190.48 : x
  2. Step 2: Convert to fraction form
    663,891,118.07/916,250,080.77 = 377,852,190.48/x
  3. Step 3: Cross multiply
    663,891,118.07x = 916,250,080.77 × 377,852,190.48
  4. Step 4: Simplify right side
    663,891,118.07x = 346,207,100,046,421,440
  5. Step 5: Solve for x
    x = 346,207,100,046,421,440/663,891,118.07
  6. Step 6: Final answer
    x = 521,481,746.97

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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.