Home / 378,835,255.31-518,995,614.95-364,671,637.70

Finding the Fourth Proportional to 378,835,255.31, 518,995,614.95 and 364,671,637.70

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Solution

The fourth proportional to 378,835,255.31, 518,995,614.95 and 364,671,637.70 is: 499,591,783.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,835,255.31 : 518,995,614.95 = 364,671,637.70 : x
  2. Step 2: Convert to fraction form
    378,835,255.31/518,995,614.95 = 364,671,637.70/x
  3. Step 3: Cross multiply
    378,835,255.31x = 518,995,614.95 × 364,671,637.70
  4. Step 4: Simplify right side
    378,835,255.31x = 189,262,980,861,111,744
  5. Step 5: Solve for x
    x = 189,262,980,861,111,744/378,835,255.31
  6. Step 6: Final answer
    x = 499,591,783.52

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.