Home / 538,456,536.74-743,127,137.46-315,625,441.34

Finding the Fourth Proportional to 538,456,536.74, 743,127,137.46 and 315,625,441.34

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Solution

The fourth proportional to 538,456,536.74, 743,127,137.46 and 315,625,441.34 is: 435,596,589.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,456,536.74 : 743,127,137.46 = 315,625,441.34 : x
  2. Step 2: Convert to fraction form
    538,456,536.74/743,127,137.46 = 315,625,441.34/x
  3. Step 3: Cross multiply
    538,456,536.74x = 743,127,137.46 × 315,625,441.34
  4. Step 4: Simplify right side
    538,456,536.74x = 234,549,830,728,827,712
  5. Step 5: Solve for x
    x = 234,549,830,728,827,712/538,456,536.74
  6. Step 6: Final answer
    x = 435,596,589.00

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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.