Home / 751,362,866.54-1,036,449,963.72-468,614,421.21

Finding the Fourth Proportional to 751,362,866.54, 1,036,449,963.72 and 468,614,421.21

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Solution

The fourth proportional to 751,362,866.54, 1,036,449,963.72 and 468,614,421.21 is: 646,419,222.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,362,866.54 : 1,036,449,963.72 = 468,614,421.21 : x
  2. Step 2: Convert to fraction form
    751,362,866.54/1,036,449,963.72 = 468,614,421.21/x
  3. Step 3: Cross multiply
    751,362,866.54x = 1,036,449,963.72 × 468,614,421.21
  4. Step 4: Simplify right side
    751,362,866.54x = 485,695,399,861,773,312
  5. Step 5: Solve for x
    x = 485,695,399,861,773,312/751,362,866.54
  6. Step 6: Final answer
    x = 646,419,222.31

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Double scale
Find fourth proportional to 751,362,867.54, 1,036,449,965.10 and 468,614,422.21
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1.5x scale

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.