Home / 681,527,720.80-1,022,291,581.20-423,538,703.20

Finding the Fourth Proportional to 681,527,720.80, 1,022,291,581.20 and 423,538,703.20

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Solution

The fourth proportional to 681,527,720.80, 1,022,291,581.20 and 423,538,703.20 is: 635,308,054.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,527,720.80 : 1,022,291,581.20 = 423,538,703.20 : x
  2. Step 2: Convert to fraction form
    681,527,720.80/1,022,291,581.20 = 423,538,703.20/x
  3. Step 3: Cross multiply
    681,527,720.80x = 1,022,291,581.20 × 423,538,703.20
  4. Step 4: Simplify right side
    681,527,720.80x = 432,980,050,593,725,504
  5. Step 5: Solve for x
    x = 432,980,050,593,725,504/681,527,720.80
  6. Step 6: Final answer
    x = 635,308,054.80

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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.