Home / 677,962,786.56-935,512,652.16-399,486,186.24

Finding the Fourth Proportional to 677,962,786.56, 935,512,652.16 and 399,486,186.24

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Solution

The fourth proportional to 677,962,786.56, 935,512,652.16 and 399,486,186.24 is: 551,246,158.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,962,786.56 : 935,512,652.16 = 399,486,186.24 : x
  2. Step 2: Convert to fraction form
    677,962,786.56/935,512,652.16 = 399,486,186.24/x
  3. Step 3: Cross multiply
    677,962,786.56x = 935,512,652.16 × 399,486,186.24
  4. Step 4: Simplify right side
    677,962,786.56x = 373,724,381,590,666,112
  5. Step 5: Solve for x
    x = 373,724,381,590,666,112/677,962,786.56
  6. Step 6: Final answer
    x = 551,246,158.34

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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.